Alright, let's work through 3171 times 4997 step by step
3171 × 4997 = 4997 × (3171)
+ 4997 × 1 producing 4997
+ 4997 × 70 yielding 349790
+ 4997 × 100 what gives us 499700
+ 4997 × 3000 that is equal 14991000

= 15845487
