Alright, let's work through 78938404 times 76946707 step by step
78938404 × 76946707 = 76946707 × (78938404)
+ 76946707 × 4 producing 307786828
+ 76946707 × 00 what gives us 0
+ 76946707 × 400 resulting in 30778682800
+ 76946707 × 8000 resulting in 615573656000
+ 76946707 × 30000 what gives us 2308401210000
+ 76946707 × 900000 what gives us 69252036300000
+ 76946707 × 8000000 what gives us 615573656000000
+ 76946707 × 70000000 producing 5386269490000000

= 6074050243635628
