How to extract content from the webpage

I have created a data-driven automated script for user account creation, I just want to add a step to extract a identification number which is generated when all the details are filled in and submit button is clicked before every next iteration, and write that in the same style-sheet from where its grabbing the data.

I am not sure if Coded Step would work in this case or there is any way to achieve this  except Coded Step.

Thanks in advance