Alright, let's work through 5638 times 8399 step by step
5638 × 8399 = 8399 × (5638)
+ 8399 × 8 that results in 67192
+ 8399 × 30 yielding 251970
+ 8399 × 600 that equals 5039400
+ 8399 × 5000 that equals 41995000

= 47353562
