No problem, we've got 7647 and 5646 to multiply
7647 × 5646 = 5646 × (7647)
+ 5646 × 7 what gives us 39522
+ 5646 × 40 that results in 225840
+ 5646 × 600 what gives us 3387600
+ 5646 × 7000 giving us 39522000

= 43174962
