How To Write EMBEDDING Code For Particular Section In Your Page ?

Hello Programmers,

We use the fragment in urls for the browser to hone in on a particular secion on our page.
http://www.yoursite.com/#heading_number~1
http://www.yoursite.com/#heading_number~2

And so on.
Now, we can easily open those particular sections in iFrames of your's or third party site's) that does not have a fragment {#) in the url.
And, let's say you want to open in an iFrame that particular section (on some page of your's or on third party site's) then how would you code the iFrame to be able to show the page honed-in on your desired section ? You cannot do it with iFrames in this case. Now can you ? So, let's try embedding here. That's why I ask, how to write the embedding code here ?