Alright, let's work through 4639 times 1143 step by step
4639 × 1143 = 1143 × (4639)
+ 1143 × 9 yielding 10287
+ 1143 × 30 yielding 34290
+ 1143 × 600 yielding 685800
+ 1143 × 4000 giving us 4572000

= 5302377
