To embed the HubSpot form in your code just enter the below code snippet in your html code and it will work:
Note: The above form will not show up when you open your index.html file in chrome, but it will work when you make it live on the server. You can try it out over here https://www.hostatic.com/
So what you can do here: You can make a div on left side of the page with specific width and then add the form code snippet inside the div.
Please refer to this link for detailed information.
Gaunisha Gaanavi G