Alright, let's work through 4126 times 3861 step by step
4126 × 3861 = 3861 × (4126)
+ 3861 × 6 yielding 23166
+ 3861 × 20 producing 77220
+ 3861 × 100 yielding 386100
+ 3861 × 4000 what gives us 15444000

= 15930486
