How to ask "How is it over there?" In Korean/Hangul
I am asking this question to a friend who lives over seas. Please answer accurately and formally, thank you.

Question

Answer

how is it over there?

formal way 거기서 잘 지내시나요? 
informal way, 거기서 잘 지내니?

or you can ask you is you life over there? ( in Korean expression we use this more than how is it over there.) 
그 곳 생활은 어떠세요? 
그 곳 생활은 어떠니?

good luck! :)