Step 1:  Go to this page https://www.namecheap.com/hosting/shared/  and select Stellar package ($15.44 for the 1st year)

Buy Stellar Hosting if you plan to have less than 3 websites. Stellar Plus for more than 3 sites.

Step 2: Select the link “Transfer my domain to Namecheap

Step 3: Enter your domain. And click “Add Domain to cart” and click “Continue”

step 4: Make sure “Auto Renew” buttons are on. Then “Confirm” and pay.