Alright, let's work through 1590 times 4084 step by step
1590 × 4084 = 4084 × (1590)
+ 4084 × 0 that results in 0
+ 4084 × 90 that is equal 367560
+ 4084 × 500 which equals 2042000
+ 4084 × 1000 what gives us 4084000

= 6493560
