Alright, let's work through 99607664 times 88717607 step by step
99607664 × 88717607 = 88717607 × (99607664)
+ 88717607 × 4 which equals 354870428
+ 88717607 × 60 that equals 5323056420
+ 88717607 × 600 that is equal 53230564200
+ 88717607 × 7000 what gives us 621023249000
+ 88717607 × 00000 yielding 0
+ 88717607 × 600000 giving us 53230564200000
+ 88717607 × 9000000 that results in 798458463000000
+ 88717607 × 90000000 that is equal 7984584630000000

= 8836953588940048
