Alright, let's work through 9805 times 8107 step by step
9805 × 8107 = 8107 × (9805)
+ 8107 × 5 that is equal 40535
+ 8107 × 00 yielding 0
+ 8107 × 800 that equals 6485600
+ 8107 × 9000 yielding 72963000

= 79489135
