Let's calculate 2643 x 5993
2643 × 5993 = 5993 × (2643)
+ 5993 × 3 that equals 17979
+ 5993 × 40 that is equal 239720
+ 5993 × 600 resulting in 3595800
+ 5993 × 2000 resulting in 11986000

= 15839499
