We're going to solve 6472 multiplied by 3111
6472 × 3111 = 3111 × (6472)
+ 3111 × 2 resulting in 6222
+ 3111 × 70 producing 217770
+ 3111 × 400 giving us 1244400
+ 3111 × 6000 what gives us 18666000

= 20134392
