Alright, let's work through 3387 times 481 step by step
3387 × 481 = 481 × (3387)
+ 481 × 7 resulting in 3367
+ 481 × 80 what gives us 38480
+ 481 × 300 what gives us 144300
+ 481 × 3000 resulting in 1443000

= 1629147
