Alright, let's work through 2591 times 7668 step by step
2591 × 7668 = 7668 × (2591)
+ 7668 × 1 yielding 7668
+ 7668 × 90 that is equal 690120
+ 7668 × 500 that results in 3834000
+ 7668 × 2000 that results in 15336000

= 19867788
