Alright, let's work through 77693442 times 63717217 step by step
77693442 × 63717217 = 63717217 × (77693442)
+ 63717217 × 2 resulting in 127434434
+ 63717217 × 40 yielding 2548688680
+ 63717217 × 400 producing 25486886800
+ 63717217 × 3000 yielding 191151651000
+ 63717217 × 90000 that results in 5734549530000
+ 63717217 × 600000 resulting in 38230330200000
+ 63717217 × 7000000 which equals 446020519000000
+ 63717217 × 70000000 which equals 4460205190000000

= 4950409903390914
