Alright, let's work through 8605 times 8173 step by step
8605 × 8173 = 8173 × (8605)
+ 8173 × 5 that is equal 40865
+ 8173 × 00 which equals 0
+ 8173 × 600 yielding 4903800
+ 8173 × 8000 giving us 65384000

= 70328665
