Alright, let's work through 6427 times 2537 step by step
6427 × 2537 = 2537 × (6427)
+ 2537 × 7 that is equal 17759
+ 2537 × 20 yielding 50740
+ 2537 × 400 that equals 1014800
+ 2537 × 6000 giving us 15222000

= 16305299
