Here's Another Great Explanation of Daniel's 490 Year (70 x 7's) Prophecy

 Angel Gabriel came to Daniel while he was in exile in Babylon.  He told him it would take 490 years to wrap everything up FOR HIS PEOPLE, the Jews.  From the signing on the decree by Cyrus to release the Jews and return to Jerusalem to rebuild the walls and the Temple, until Messiah was cut off would be 483 years.  And to the day that's exactly when Jesus entered Jerusalem on a donkey on Passover.  So 69 weeks of years (69 x 7) is 483 years...and then the stopwatch stopped of the Jewish prophecy.  Which means there are 7 years left AND THAT'S EXACTLY how long the 70th Week of Daniel will be!  7 years!  It will start when the Antichrist confirms a peace agreement and will end when Jesus returns at Armageddon to set up his 1000 year reign on earth!

When it comes to prophecy, perhaps none is more amazing than the one we call the 70 weeks of Daniel (Dan. 9:24–27). God gave this astounding glimpse of the future to the Jewish prophet Daniel in 538 BC, 48 years after Babylon destroyed Jerusalem and burned Solomon’s Temple to the ground.

Not only does this prophecy pinpoint the exact time the Messiah would be on Earth, but it also reaches thousands of years into the future to describe end-times events still on the horizon, including a unique time of horror and judgment known as the Great Tribulation, as well as God’s final deliverance of a redeemed Israel.

The prophecy begins, “Seventy weeks are determined for your people [Israel] and for your holy city [Jerusalem]” (v. 24). The weeks are weeks of years (Hebrew, “seventy sevens”) totaling 490 years, each being a biblical year of 360 days. This period of years is divided into three parts:

1. Seven Weeks (49 years). “Know therefore and understand, that from the going forth of the command to restore and build Jerusalem until Messiah the Prince, there shall be seven weeks and sixty-two weeks; the street shall be built again, and the wall, even in troublesome times” (v. 25).

The countdown began in 445 BC, when Persian King Artaxerxes commanded the rebuilding of Jerusalem. Both the city and walls were reconstructed (Neh. 1—13).

2. Sixty-Two Weeks (434 years). “And after the sixty-two weeks Messiah shall be cut off [die], but not for Himself; and the people of the prince who is to come shall destroy the city and the sanctuary” (Dan. 9:26). Jesus was crucified in ca. AD 33. In AD 70, the Romans destroyed Jerusalem and the Second Temple.

3. One Week (seven years, yet to come). “Then he shall confirm a covenant with many for one week; but in the middle of the week he shall bring an end to sacrifice and offering. And on the wing of abominations shall be one who makes desolate” (v. 27).

As with many prophecies, a time gap exists. Here the gap shows up between the 69th and 70th weeks. After the Messiah’s death and resurrection, God stopped the countdown and inserted the Church Age, the age of grace, which will end with the Rapture when He removes His church from Earth. Then the Antichrist (“the prince who is to come,” v. 26) will appear and confirm a strong, binding covenant with Israel for “one week” (the final seven years). This is the 70th week of Daniel.

Here;  The 70th Week Of Daniel: An Astounding Glimpse Of The Future - Harbinger's Daily

If this still doesn't make sense, please pull up the article above and study it.  Understanding it will make you realize that this is one of the most amazing prophecies in all the Bible.  It will also build your confidence in the fact that the Pre-millennial way of looking at eschatology is the way of looking at things that makes the most sense.