How do I get money from KuCoin to my bank?

Could you please explain to me the steps involved in withdrawing money from KuCoin to my bank account? I'm a bit confused about the process. Do I need to convert my cryptocurrency to fiat currency first? And what about the fees involved? Are they reasonable? Also, how long does the whole process usually take? Is it instant or does it take a few days? I'd really appreciate it if you could break it down for me step by step. Thank you!