Alright, let's work through 3609 times 6459 step by step
3609 × 6459 = 6459 × (3609)
+ 6459 × 9 which equals 58131
+ 6459 × 00 that is equal 0
+ 6459 × 600 yielding 3875400
+ 6459 × 3000 which equals 19377000

= 23310531
