Alright, let's work through 6740 times 4139 step by step
6740 × 4139 = 4139 × (6740)
+ 4139 × 0 yielding 0
+ 4139 × 40 what gives us 165560
+ 4139 × 700 producing 2897300
+ 4139 × 6000 that is equal 24834000

= 27896860
