請間如何將手上實質的股票(紙)存入銀行,然後在網上銀行賣掉!?

You should have an investment account in your bank (if not can open one), then take your paper stock to the teller and tell him/her to put that into that into your investment account, usually they will charge a deposit fee, for example, Hang Seng will charge around $30 per each transaction. After you have deposit, you should able to check the deposit in your e-bank record, please ask how long it will take the bank to do so, as different bank might handle it different.
After you see the number of stock is record in your e-bank account, you can sell it as you like with the price you set, of course when you sell it, you will be charge another fee.
Good luck.
If you have more question, let me know.

先係銀行開個股票戶口，同時交埋張股票 (紙) 比銀行，話存入戶口的，佢地會做。

開完戶，遲d先交比銀行入又得。