Alright, let's work through 8591 times 9409 step by step
8591 × 9409 = 9409 × (8591)
+ 9409 × 1 resulting in 9409
+ 9409 × 90 yielding 846810
+ 9409 × 500 resulting in 4704500
+ 9409 × 8000 resulting in 75272000

= 80832719
