Alright, let's work through 3781 times 3311 step by step
3781 × 3311 = 3311 × (3781)
+ 3311 × 1 producing 3311
+ 3311 × 80 resulting in 264880
+ 3311 × 700 that results in 2317700
+ 3311 × 3000 yielding 9933000

= 12518891
