No problem, we've got 77877764 and 68787905 to multiply
77877764 × 68787905 = 68787905 × (77877764)
+ 68787905 × 4 producing 275151620
+ 68787905 × 60 which equals 4127274300
+ 68787905 × 700 what gives us 48151533500
+ 68787905 × 7000 resulting in 481515335000
+ 68787905 × 70000 what gives us 4815153350000
+ 68787905 × 800000 what gives us 55030324000000
+ 68787905 × 7000000 what gives us 481515335000000
+ 68787905 × 70000000 which equals 4815153350000000

= 5357048231644420
