Alright, let's work through 6386 times 2551 step by step
6386 × 2551 = 2551 × (6386)
+ 2551 × 6 that equals 15306
+ 2551 × 80 what gives us 204080
+ 2551 × 300 that results in 765300
+ 2551 × 6000 which equals 15306000

= 16290686
