Alright, let's work through 5631 times 1003 step by step
5631 × 1003 = 1003 × (5631)
+ 1003 × 1 which equals 1003
+ 1003 × 30 yielding 30090
+ 1003 × 600 producing 601800
+ 1003 × 5000 that is equal 5015000

= 5647893
