Follow these steps to upload your theme on WordPress:
STEP 1: Log in to your administrator dashboard.
STEP 2: On the left sidebar of the dashboard, navigate to Appearance –> Themes. Now, click Add New.
STEP 3: Once you click on the Add New button, you will see the next screen as shown below. Click on the “Upload Theme” option from here.
STEP 4: Now you can Browse your theme and press the “Install Now” button.
STEP 5: After successful installation, you can Activate the theme on your website.
STEP 6: Once the theme is activated, you can also visit the site to see how it looks on the browser.
The Website Front Page after activation of the theme is: