How to get data from webpage to NSString

Is it possible (using ASIHTTPRequest or something) to get data from webpage and save it to NSString variable?

I have following code on the webpage:

<span id="ctl06_ctl06_spDailySMSSection">RANDOM TEXT xxxxxxxxxxxxxxxxxxxxxxxxxx <strong><span id="ctl06_ctl06_spNumberOfDailySMSLeft"></span></strong> AGAIN RANDOM TEXT.</span>

how can I get data from field ctl06_ctl06_spNumberOfDailySMSLeft and use it in iOS app?

Thank you in advance