After logging in with your Apple ID, you can submit your podcast. Apple requires you to validate your podcast before actually submitting your podcast for approval.
1. Next to 'Podcasts', click '+'
2. Select 'New show'.
3. Under Show type, select 'Add a show with an RSS feed'.
4. Enter the RSS feed you copied in step 1 here
4. Check that the correct information is shown and refresh the page and complete the details
5. Check that all published episodes are shown
6. If everything is correct, click 'save' and then the 'submit' button (top right) to submit your podcast
The approval of your podcast may take a few days. Generally, it does not exceed 72 hours. You will receive an e-mail when your podcast has been approved and registered.