Alright, let's work through 7580 times 3509 step by step
7580 × 3509 = 3509 × (7580)
+ 3509 × 0 yielding 0
+ 3509 × 80 resulting in 280720
+ 3509 × 500 yielding 1754500
+ 3509 × 7000 that equals 24563000

= 26598220
