Alright, let's work through 76788478 times 57093707 step by step
76788478 × 57093707 = 57093707 × (76788478)
+ 57093707 × 8 that is equal 456749656
+ 57093707 × 70 that is equal 3996559490
+ 57093707 × 400 what gives us 22837482800
+ 57093707 × 8000 that is equal 456749656000
+ 57093707 × 80000 yielding 4567496560000
+ 57093707 × 700000 which equals 39965594900000
+ 57093707 × 6000000 which equals 342562242000000
+ 57093707 × 70000000 which equals 3996559490000000

= 4384138863907946
