Alright, let's work through 8931 times 623 step by step
8931 × 623 = 623 × (8931)
+ 623 × 1 resulting in 623
+ 623 × 30 which equals 18690
+ 623 × 900 producing 560700
+ 623 × 8000 that is equal 4984000

= 5564013
