We're going to solve 4031 multiplied by 3715
4031 × 3715 = 3715 × (4031)
+ 3715 × 1 producing 3715
+ 3715 × 30 what gives us 111450
+ 3715 × 000 yielding 0
+ 3715 × 4000 resulting in 14860000

= 14975165
