Alright, let's work through 76665582 times 65329904 step by step
76665582 × 65329904 = 65329904 × (76665582)
+ 65329904 × 2 producing 130659808
+ 65329904 × 80 producing 5226392320
+ 65329904 × 500 that is equal 32664952000
+ 65329904 × 5000 which equals 326649520000
+ 65329904 × 60000 that equals 3919794240000
+ 65329904 × 600000 which equals 39197942400000
+ 65329904 × 6000000 giving us 391979424000000
+ 65329904 × 70000000 yielding 4573093280000000

= 5008555112164128
