Alright, let's work through 1005 times 8464 step by step
1005 × 8464 = 8464 × (1005)
+ 8464 × 5 that results in 42320
+ 8464 × 00 producing 0
+ 8464 × 000 yielding 0
+ 8464 × 1000 that is equal 8464000

= 8506320
