Alright, let's work through 1583 times 3602 step by step
1583 × 3602 = 3602 × (1583)
+ 3602 × 3 what gives us 10806
+ 3602 × 80 which equals 288160
+ 3602 × 500 what gives us 1801000
+ 3602 × 1000 that results in 3602000

= 5701966
