Alright, let's work through 79777393 times 97929315 step by step
79777393 × 97929315 = 97929315 × (79777393)
+ 97929315 × 3 that equals 293787945
+ 97929315 × 90 which equals 8813638350
+ 97929315 × 300 which equals 29378794500
+ 97929315 × 7000 yielding 685505205000
+ 97929315 × 70000 giving us 6855052050000
+ 97929315 × 700000 resulting in 68550520500000
+ 97929315 × 9000000 that results in 881363835000000
+ 97929315 × 70000000 which equals 6855052050000000

= 7812545448975795
