Connecting your domain name to your Shopify account can be done without a hosting account. To achieve this, kindly follow the steps below :
You can also click to watch a video on how to map your domain name to your
Step 1 - Log in to your Shopify account, click on the Settings Icon, and click on domains to get to the domains page.
Then click on Connect existing domain, proceed to input the domain name that you have registered with Whogohost that you want to connect in the domain search box, and click on next. 
Step 2 - Proceed to click on verify to see the record you need to add,
Step 3 - Login to your client area with Whogohost and change the DNS record
Locate manage DNS and click on the domain name you want to change
Step 4 - Point the A record to the Shopify IP address 23.227.38.65 and save changes
Point the CNAME record with the name www to shops.myshopify.com and save changes
STEP 5 - Once changes have been saved, go back to the domain connection page on your Shopify account to confirm that your domain is connected to your Shopify store and click Verify again
Please Note :
It might take up to 48 hours for your domain to be verified. After it's verified, your domain is listed in the THIRD-PARTY DOMAINS section of the Domains page with the status Connected.