Let's calculate 2528 x 4003
2528 × 4003 = 4003 × (2528)
+ 4003 × 8 which equals 32024
+ 4003 × 20 which equals 80060
+ 4003 × 500 that results in 2001500
+ 4003 × 2000 that is equal 8006000

= 10119584
