The Process of Guest Posting mentioned below:
Find the right sites to pitch.
Look through the site’s current posts and guest blogging guidelines.
Pick the right topic with quality Matrices (domain authority, page rank, followers)
Put the post in the right format. If the blogger prefers HTML, you might need to insert header and paragraph tags. Other times a simple, clean Word document is best.
Attaching images and video can be helpful.
Add an author biography to the bottom of the post and include the link back to your site. I always include the HTML <a> tags at this stage so that there is no uncertainty over the target URL and anchor text.