Alright, let's work through 5639 times 817 step by step
5639 × 817 = 817 × (5639)
+ 817 × 9 yielding 7353
+ 817 × 30 resulting in 24510
+ 817 × 600 that is equal 490200
+ 817 × 5000 yielding 4085000

= 4607063
