Alright, let's work through 3589 times 1040 step by step
3589 × 1040 = 1040 × (3589)
+ 1040 × 9 which equals 9360
+ 1040 × 80 that equals 83200
+ 1040 × 500 that equals 520000
+ 1040 × 3000 giving us 3120000

= 3732560
