Alright, let's work through 8129 times 9116 step by step
8129 × 9116 = 9116 × (8129)
+ 9116 × 9 which equals 82044
+ 9116 × 20 that results in 182320
+ 9116 × 100 producing 911600
+ 9116 × 8000 producing 72928000

= 74103964
