Alright, let's work through 9158 times 8749 step by step
9158 × 8749 = 8749 × (9158)
+ 8749 × 8 yielding 69992
+ 8749 × 50 yielding 437450
+ 8749 × 100 giving us 874900
+ 8749 × 9000 yielding 78741000

= 80123342
