We're going to solve 1981 multiplied by 8649
1981 × 8649 = 8649 × (1981)
+ 8649 × 1 which equals 8649
+ 8649 × 80 giving us 691920
+ 8649 × 900 yielding 7784100
+ 8649 × 1000 which equals 8649000

= 17133669
