Alright, let's work through 6740 times 1897 step by step
6740 × 1897 = 1897 × (6740)
+ 1897 × 0 that is equal 0
+ 1897 × 40 yielding 75880
+ 1897 × 700 that results in 1327900
+ 1897 × 6000 giving us 11382000

= 12785780
