Alright, let's work through 5036 times 5003 step by step
5036 × 5003 = 5003 × (5036)
+ 5003 × 6 resulting in 30018
+ 5003 × 30 yielding 150090
+ 5003 × 000 what gives us 0
+ 5003 × 5000 yielding 25015000

= 25195108
