Alright, let's work through 79901363 times 80067116 step by step
79901363 × 80067116 = 80067116 × (79901363)
+ 80067116 × 3 which equals 240201348
+ 80067116 × 60 that equals 4804026960
+ 80067116 × 300 that is equal 24020134800
+ 80067116 × 1000 giving us 80067116000
+ 80067116 × 00000 yielding 0
+ 80067116 × 900000 what gives us 72060404400000
+ 80067116 × 9000000 that equals 720604044000000
+ 80067116 × 70000000 producing 5604698120000000

= 6397471699879108
