Let's calculate 1594 x 2503
1594 × 2503 = 2503 × (1594)
+ 2503 × 4 that results in 10012
+ 2503 × 90 that is equal 225270
+ 2503 × 500 that results in 1251500
+ 2503 × 1000 producing 2503000

= 3989782
