Alright, let's work through 8229 times 9139 step by step
8229 × 9139 = 9139 × (8229)
+ 9139 × 9 giving us 82251
+ 9139 × 20 that results in 182780
+ 9139 × 200 that equals 1827800
+ 9139 × 8000 yielding 73112000

= 75204831
