Alright, let's work through 6809 times 1543 step by step
6809 × 1543 = 1543 × (6809)
+ 1543 × 9 yielding 13887
+ 1543 × 00 what gives us 0
+ 1543 × 800 resulting in 1234400
+ 1543 × 6000 that is equal 9258000

= 10506287
