No problem, we've got 79512865 and 89557610 to multiply
79512865 × 89557610 = 89557610 × (79512865)
+ 89557610 × 5 yielding 447788050
+ 89557610 × 60 resulting in 5373456600
+ 89557610 × 800 what gives us 71646088000
+ 89557610 × 2000 which equals 179115220000
+ 89557610 × 10000 giving us 895576100000
+ 89557610 × 500000 yielding 44778805000000
+ 89557610 × 9000000 yielding 806018490000000
+ 89557610 × 70000000 giving us 6269032700000000

= 7120982153652650
