Step 1: Go to the Youtube video that you want to embed
Step 2: Click the Share button at the bottom of the video
Step 3: Click the embed button that appears after you click the share button
Step 4: Click the copy button to copy the embedding script to your computer
Step 5: Go to your webpage and paste the script into the webpage editor in between the <body> and </body> tags
That's it! Here's the video I embedded.