Alright, let's work through 3771 times 3997 step by step
3771 × 3997 = 3997 × (3771)
+ 3997 × 1 that is equal 3997
+ 3997 × 70 producing 279790
+ 3997 × 700 producing 2797900
+ 3997 × 3000 producing 11991000

= 15072687
