Terms and Conditions
First of all you have to register as a developer at Google Play Console, for this you have to pay developer registration fees of $25, after that you have to wait up to 7 days to get approval.
After registration, Click on 'Create Application' on Play console dashboard, after that fill the required details under the head of 'Release management' and 'Store Presence'. You have to fill all details as play store consider all details seriously don't give google a single chance to reject your app.
Under Release management > App release
here you can release your app as Production (for all users), Beta (for beta users only) and Alpha (to give users early access).
Upload .apk or .aab file, *remember from 2018 Play store now supports signature android package app only and specially bundled app (.aab) only.
Play store will take up to 7 days to approve your app, once your app is approved your app will be released on Play store.