Let's calculate 8097792 x 77088020
8097792 × 77088020 = 77088020 × (8097792)
+ 77088020 × 2 yielding 154176040
+ 77088020 × 90 what gives us 6937921800
+ 77088020 × 700 what gives us 53961614000
+ 77088020 × 7000 yielding 539616140000
+ 77088020 × 90000 that is equal 6937921800000
+ 77088020 × 000000 resulting in 0
+ 77088020 × 8000000 what gives us 616704160000000

= 624242751651840
