Alright, let's work through 3387 times 3213 step by step
3387 × 3213 = 3213 × (3387)
+ 3213 × 7 giving us 22491
+ 3213 × 80 resulting in 257040
+ 3213 × 300 what gives us 963900
+ 3213 × 3000 yielding 9639000

= 10882431
