You need to download the plugin to proceed futher.
Ensure you have latest version of WooCommerce plugin installed
Unzip and upload contents of the plugin to your /wp-content/plugins/ directory
Upload Hesabe plugin zip file and activate the plugin
You need to follow the steps as mentioned in the images below:
Go to Settings, Select
Payments tab and click on Manage.
Fill up the details provided by Hesabe.
That is how it'll look on your website.