Alright, let's work through 79679710 times 64372511 step by step
79679710 × 64372511 = 64372511 × (79679710)
+ 64372511 × 0 that is equal 0
+ 64372511 × 10 producing 643725110
+ 64372511 × 700 that is equal 45060757700
+ 64372511 × 9000 resulting in 579352599000
+ 64372511 × 70000 yielding 4506075770000
+ 64372511 × 600000 that equals 38623506600000
+ 64372511 × 9000000 which equals 579352599000000
+ 64372511 × 70000000 what gives us 4506075770000000

= 5129183008451810
