1. Install the wordpress iFrame plugin


2. Find the URL of a video you want to embed

E.g. https://www.bitchute.com/video/yecefLsE44U/

3. Change the URL by replacing video with embed


4. Add the iframe line to a post 

[iframe src="https://www.bitchute.com/embed/yecefLsE44U/" width="480" height="360"]

or for the full width of the post you can use a percentage value

[iframe src="https://www.bitchute.com/embed/yecefLsE44U/" width="100%" height="500"]