We're going to solve 1981 multiplied by 1331
1981 × 1331 = 1331 × (1981)
+ 1331 × 1 producing 1331
+ 1331 × 80 which equals 106480
+ 1331 × 900 giving us 1197900
+ 1331 × 1000 giving us 1331000

= 2636711
