No problem, we've got 88481663 and 9991136 to multiply
88481663 × 9991136 = 9991136 × (88481663)
+ 9991136 × 3 resulting in 29973408
+ 9991136 × 60 what gives us 599468160
+ 9991136 × 600 that results in 5994681600
+ 9991136 × 1000 that is equal 9991136000
+ 9991136 × 80000 that is equal 799290880000
+ 9991136 × 400000 yielding 3996454400000
+ 9991136 × 8000000 what gives us 79929088000000
+ 9991136 × 80000000 producing 799290880000000

= 884032328539168
