Alright, let's work through 8241 times 9916 step by step
8241 × 9916 = 9916 × (8241)
+ 9916 × 1 what gives us 9916
+ 9916 × 40 producing 396640
+ 9916 × 200 which equals 1983200
+ 9916 × 8000 that equals 79328000

= 81717756
