We're going to solve 7870 multiplied by 3643
7870 × 3643 = 3643 × (7870)
+ 3643 × 0 that equals 0
+ 3643 × 70 which equals 255010
+ 3643 × 800 that equals 2914400
+ 3643 × 7000 producing 25501000

= 28670410
