We're going to solve 3897 multiplied by 4777
3897 × 4777 = 4777 × (3897)
+ 4777 × 7 giving us 33439
+ 4777 × 90 which equals 429930
+ 4777 × 800 yielding 3821600
+ 4777 × 3000 giving us 14331000

= 18615969
