Alright, let's work through 6804 times 1887 step by step
6804 × 1887 = 1887 × (6804)
+ 1887 × 4 yielding 7548
+ 1887 × 00 what gives us 0
+ 1887 × 800 what gives us 1509600
+ 1887 × 6000 that is equal 11322000

= 12839148
