Alright, let's work through 1628 times 8173 step by step
1628 × 8173 = 8173 × (1628)
+ 8173 × 8 that is equal 65384
+ 8173 × 20 yielding 163460
+ 8173 × 600 producing 4903800
+ 8173 × 1000 what gives us 8173000

= 13305644
