Alright, let's work through 6877 times 6140 step by step
6877 × 6140 = 6140 × (6877)
+ 6140 × 7 yielding 42980
+ 6140 × 70 that is equal 429800
+ 6140 × 800 resulting in 4912000
+ 6140 × 6000 that results in 36840000

= 42224780
