Alright, let's work through 78349605 times 74855393 step by step
78349605 × 74855393 = 74855393 × (78349605)
+ 74855393 × 5 that results in 374276965
+ 74855393 × 00 yielding 0
+ 74855393 × 600 producing 44913235800
+ 74855393 × 9000 what gives us 673698537000
+ 74855393 × 40000 resulting in 2994215720000
+ 74855393 × 300000 producing 22456617900000
+ 74855393 × 8000000 producing 598843144000000
+ 74855393 × 70000000 giving us 5239877510000000

= 5864890473669765
