Alright, let's work through 4321 times 6393 step by step
4321 × 6393 = 6393 × (4321)
+ 6393 × 1 that equals 6393
+ 6393 × 20 yielding 127860
+ 6393 × 300 that is equal 1917900
+ 6393 × 4000 that results in 25572000

= 27624153
