Alright, let's work through 3681 times 8387 step by step
3681 × 8387 = 8387 × (3681)
+ 8387 × 1 which equals 8387
+ 8387 × 80 that results in 670960
+ 8387 × 600 yielding 5032200
+ 8387 × 3000 what gives us 25161000

= 30872547
