We're going to solve 1680 multiplied by 1685
1680 × 1685 = 1685 × (1680)
+ 1685 × 0 producing 0
+ 1685 × 80 giving us 134800
+ 1685 × 600 that equals 1011000
+ 1685 × 1000 producing 1685000

= 2830800
