We're going to solve 8181 multiplied by 1591
8181 × 1591 = 1591 × (8181)
+ 1591 × 1 giving us 1591
+ 1591 × 80 that results in 127280
+ 1591 × 100 resulting in 159100
+ 1591 × 8000 yielding 12728000

= 13015971
