Alright, let's work through 99807676 times 84135666 step by step
99807676 × 84135666 = 84135666 × (99807676)
+ 84135666 × 6 producing 504813996
+ 84135666 × 70 producing 5889496620
+ 84135666 × 600 that is equal 50481399600
+ 84135666 × 7000 that equals 588949662000
+ 84135666 × 00000 that is equal 0
+ 84135666 × 800000 giving us 67308532800000
+ 84135666 × 9000000 what gives us 757220994000000
+ 84135666 × 90000000 giving us 7572209940000000

= 8397385292172216
