Alright, let's work through 99719792 times 98433178 step by step
99719792 × 98433178 = 98433178 × (99719792)
+ 98433178 × 2 that is equal 196866356
+ 98433178 × 90 resulting in 8858986020
+ 98433178 × 700 giving us 68903224600
+ 98433178 × 9000 that equals 885898602000
+ 98433178 × 10000 what gives us 984331780000
+ 98433178 × 700000 yielding 68903224600000
+ 98433178 × 9000000 producing 885898602000000
+ 98433178 × 90000000 what gives us 8858986020000000

= 9815736036058976
