No problem, we've got 3387 and 4009 to multiply
3387 × 4009 = 4009 × (3387)
+ 4009 × 7 that is equal 28063
+ 4009 × 80 which equals 320720
+ 4009 × 300 resulting in 1202700
+ 4009 × 3000 resulting in 12027000

= 13578483
