Download the Joomla Installation Package
To install Joomla on your server, the first step is to download the Joomla installation Package from the official Joomla website, Joomla.org. It is always safe to download the package from official website.
The downloaded file will be saved on your hard disk.
Upload the Joomla file to your server
If you need Joomla to be the main installation on your account, you need to upload the extracted downloaded Joomla installation files to Public_html folder.
Create a MySQL Database for Joomla
Now you have to create MySQL database and assign a user with full access. Create a database username, database password and database name and note down the details since you r going to need it later for the installation.
In Step you have uploaded the installation files already in your domain, once you do that you have taken to the screen where you add the mandatory information such as Site name, Description, Admin Email, Admin Username, Admin Password and site offline and then click next button.
Now the database configuration page will open, enter the MySql database details. After entering necessary details now click Next.
Now you will be progressed to the last page, here you can choose if you want any sample data installed on your server. For beginners, we recommend you to select default sample data. Note that you can delete this sample data anytime
Finally hit the Install button and you will be forwarded to the Joomla web Installer.
Now you have to click Remove Installation folder for security purpose so no one can install again on existing one.