We're going to solve 8581 multiplied by 2443
8581 × 2443 = 2443 × (8581)
+ 2443 × 1 what gives us 2443
+ 2443 × 80 resulting in 195440
+ 2443 × 500 yielding 1221500
+ 2443 × 8000 what gives us 19544000

= 20963383
