No problem, we've got 87250836 and 72385564 to multiply
87250836 × 72385564 = 72385564 × (87250836)
+ 72385564 × 6 resulting in 434313384
+ 72385564 × 30 that equals 2171566920
+ 72385564 × 800 producing 57908451200
+ 72385564 × 0000 giving us 0
+ 72385564 × 50000 giving us 3619278200000
+ 72385564 × 200000 giving us 14477112800000
+ 72385564 × 7000000 yielding 506698948000000
+ 72385564 × 80000000 resulting in 5790845120000000

= 6315700973331504
