Alright, let's work through 5637 times 1000 step by step
5637 × 1000 = 1000 × (5637)
+ 1000 × 7 what gives us 7000
+ 1000 × 30 that is equal 30000
+ 1000 × 600 yielding 600000
+ 1000 × 5000 which equals 5000000

= 5637000
