Alright, let's work through 8673 times 2646 step by step
8673 × 2646 = 2646 × (8673)
+ 2646 × 3 that results in 7938
+ 2646 × 70 producing 185220
+ 2646 × 600 that is equal 1587600
+ 2646 × 8000 that equals 21168000

= 22948758
