We're going to solve 3983 multiplied by 5157
3983 × 5157 = 5157 × (3983)
+ 5157 × 3 yielding 15471
+ 5157 × 80 yielding 412560
+ 5157 × 900 what gives us 4641300
+ 5157 × 3000 yielding 15471000

= 20540331
