Alright, let's work through 2660 times 6487 step by step
2660 × 6487 = 6487 × (2660)
+ 6487 × 0 that equals 0
+ 6487 × 60 that is equal 389220
+ 6487 × 600 which equals 3892200
+ 6487 × 2000 resulting in 12974000

= 17255420
