Alright, let's work through 5183 times 8403 step by step
5183 × 8403 = 8403 × (5183)
+ 8403 × 3 yielding 25209
+ 8403 × 80 what gives us 672240
+ 8403 × 100 what gives us 840300
+ 8403 × 5000 producing 42015000

= 43552749
