No problem, we've got 3640 and 6424 to multiply
3640 × 6424 = 6424 × (3640)
+ 6424 × 0 that results in 0
+ 6424 × 40 yielding 256960
+ 6424 × 600 that is equal 3854400
+ 6424 × 3000 producing 19272000

= 23383360
