Alright, let's work through 5003 times 5045 step by step
5003 × 5045 = 5045 × (5003)
+ 5045 × 3 what gives us 15135
+ 5045 × 00 what gives us 0
+ 5045 × 000 which equals 0
+ 5045 × 5000 giving us 25225000

= 25240135
