Alright, let's work through 6813 times 125 step by step
6813 × 125 = 125 × (6813)
+ 125 × 3 producing 375
+ 125 × 10 that is equal 1250
+ 125 × 800 that is equal 100000
+ 125 × 6000 yielding 750000

= 851625
