No problem, we've got 71800041 and 47643650 to multiply
71800041 × 47643650 = 47643650 × (71800041)
+ 47643650 × 1 what gives us 47643650
+ 47643650 × 40 resulting in 1905746000
+ 47643650 × 000 which equals 0
+ 47643650 × 0000 producing 0
+ 47643650 × 00000 what gives us 0
+ 47643650 × 800000 yielding 38114920000000
+ 47643650 × 1000000 resulting in 47643650000000
+ 47643650 × 70000000 what gives us 3335055500000000

= 3420816023389650
