Alright, let's work through 3485 times 3851 step by step
3485 × 3851 = 3851 × (3485)
+ 3851 × 5 that results in 19255
+ 3851 × 80 that results in 308080
+ 3851 × 400 producing 1540400
+ 3851 × 3000 yielding 11553000

= 13420735
