Alright, let's work through 3597 times 3537 step by step
3597 × 3537 = 3537 × (3597)
+ 3537 × 7 yielding 24759
+ 3537 × 90 that results in 318330
+ 3537 × 500 that results in 1768500
+ 3537 × 3000 what gives us 10611000

= 12722589
