We're going to solve 3999 multiplied by 5641
3999 × 5641 = 5641 × (3999)
+ 5641 × 9 yielding 50769
+ 5641 × 90 that results in 507690
+ 5641 × 900 giving us 5076900
+ 5641 × 3000 that results in 16923000

= 22558359
