Alright, let's work through 5903 times 5104 step by step
5903 × 5104 = 5104 × (5903)
+ 5104 × 3 producing 15312
+ 5104 × 00 that is equal 0
+ 5104 × 900 yielding 4593600
+ 5104 × 5000 that is equal 25520000

= 30128912
