Here is how to backup WordPress using the Updraft WordPress backup plugin.
Step 1. Install and Activate Updraft
Go to Plugins > Add New and in the search bar in top right, type “updraft”.
From the search results click on the Install Now button and then activate it.
Step 2. Open plugin settings
After installing and activating the plugin, go to Settings > UpDraftPlus Backups
Step 2. Under Settings schedule backups
Click on the Settings tab, set remote storage and what to backup (only uploads, plugins, database, etc..).