Alright, let's work through 5803 times 2453 step by step
5803 × 2453 = 2453 × (5803)
+ 2453 × 3 yielding 7359
+ 2453 × 00 producing 0
+ 2453 × 800 that is equal 1962400
+ 2453 × 5000 yielding 12265000

= 14234759
