Alright, let's work through 77191738 times 49929509 step by step
77191738 × 49929509 = 49929509 × (77191738)
+ 49929509 × 8 giving us 399436072
+ 49929509 × 30 yielding 1497885270
+ 49929509 × 700 what gives us 34950656300
+ 49929509 × 1000 which equals 49929509000
+ 49929509 × 90000 resulting in 4493655810000
+ 49929509 × 100000 which equals 4992950900000
+ 49929509 × 7000000 which equals 349506563000000
+ 49929509 × 70000000 which equals 3495065630000000

= 3854145577196642
