We're going to solve 3831 multiplied by 3982
3831 × 3982 = 3982 × (3831)
+ 3982 × 1 resulting in 3982
+ 3982 × 30 that equals 119460
+ 3982 × 800 what gives us 3185600
+ 3982 × 3000 yielding 11946000

= 15255042
