No problem, we've got 1670 and 5645 to multiply
1670 × 5645 = 5645 × (1670)
+ 5645 × 0 producing 0
+ 5645 × 70 what gives us 395150
+ 5645 × 600 yielding 3387000
+ 5645 × 1000 which equals 5645000

= 9427150
