You need to sign up for the Google Play Console, be a registered publisher and have a unique Bundle ID, and upload a signed APK or expandable APK files. Then you can create an application in the console, fill out the app's information including a short description, full description, screenshots, hi-res icon, feature graphic, video link, application type, category, and contact details. Next, you need to declare your app's content, set its price and availability, and publish it. The entire process involves several steps and requires careful attention to detail to ensure success.