Example
Requirements:
- A developer account
- An apk already built and signed with a non-debug key
- A free app that doesn't have in-app billing
- no Firebase Cloud Messaging or Game Services
- Head to https://play.google.com/apps/publish/
1a) Create your developer account if you do not have one
- Click button
Create new Application
- Click submit APK
- Fill in all required fields in the form, including some assets that will be displayed on the Play Store (see image below)
- When satisfied hit
Publish app
button

See more about signing in Configure Signing Settings