No problem, we've got 6460 and 6715 to multiply
6460 × 6715 = 6715 × (6460)
+ 6715 × 0 which equals 0
+ 6715 × 60 yielding 402900
+ 6715 × 400 producing 2686000
+ 6715 × 6000 that is equal 40290000

= 43378900
