A tutorial on how to remove/hide powered by WordPress. There are multiple ways to do it but the one I recommend would be using a plugin called remove footer credit and a safer method for most of us.
This can be applied for removing copyright footer name from a free WordPress theme
Using code, If not done correctly It can hurt your website through a penalty from a search engine or might break.
FIRST, log in to your dashboard and choose plugins
SECOND, It will expand with options and click on add new
THIRD, Type in remove footer credit in the rectangular box next to the keyword
Install and activate the plugin
FOURTH, Choose the remove footer credit option under Tools
LASTLY, The first box, enter Proudly powered by WordPress under entering text/HTML to remove ( one per line )
The second box, enter your preferred words or sentence under enter your own footer credit ( one per line )
Click on the Save button