replicate tables from mysql database to online hosting server having cpanel (5gbfree.com)

I am looking for a way to mirror or replicate a local MySQL database to an online hosting website which is 5gbfree.com. I saw the master slave replication but don't know how to use it with an online server. Can you help me please ?

I tried setting the online database as the slave but it didn't work.

problem

I don't know how to configure the online database as the slave.