Alright, let's work through 7591 times 3990 step by step
7591 × 3990 = 3990 × (7591)
+ 3990 × 1 yielding 3990
+ 3990 × 90 giving us 359100
+ 3990 × 500 yielding 1995000
+ 3990 × 7000 producing 27930000

= 30288090
