Alright, let's work through 77877482 times 54335174 step by step
77877482 × 54335174 = 54335174 × (77877482)
+ 54335174 × 2 that results in 108670348
+ 54335174 × 80 that results in 4346813920
+ 54335174 × 400 giving us 21734069600
+ 54335174 × 7000 yielding 380346218000
+ 54335174 × 70000 that equals 3803462180000
+ 54335174 × 800000 what gives us 43468139200000
+ 54335174 × 7000000 yielding 380346218000000
+ 54335174 × 70000000 what gives us 3803462180000000

= 4231486535151868
