Alright, let's work through 8623 times 8458 step by step
8623 × 8458 = 8458 × (8623)
+ 8458 × 3 yielding 25374
+ 8458 × 20 yielding 169160
+ 8458 × 600 producing 5074800
+ 8458 × 8000 that is equal 67664000

= 72933334
