No problem, we've got 12505585 and 54079542 to multiply
12505585 × 54079542 = 54079542 × (12505585)
+ 54079542 × 5 that is equal 270397710
+ 54079542 × 80 that is equal 4326363360
+ 54079542 × 500 yielding 27039771000
+ 54079542 × 5000 yielding 270397710000
+ 54079542 × 00000 which equals 0
+ 54079542 × 500000 producing 27039771000000
+ 54079542 × 2000000 which equals 108159084000000
+ 54079542 × 10000000 that results in 540795420000000

= 676296309242070
