Task: I want to create a document with the text "My most favourite books areThe Lord of the Rings by J.R.R. Tolkien,The Magic Mountain by Thomas Mann, etc." in Google Docs app
Steps:
Open the Google docs app
Click on the create icon 
Click on the New document icon
Type My most favourite books are The Lord of the Rings by J.R.R. Tolkien,The Magic Mountain by Thomas Mann in type bar
Click on the right tick icon