title: Simple async task example for an WCF Service in C#
body: <p>I'm writing a WCF service for an android application.
  The flow is pretty simple:</p>
  
  <ol>
  <li>The app sends a data to the method. </li>
  <li>The method returns back a result indicating that it got the data. </li>
  <li>I have to proceed the data further without waiting for any result, the app needs to get a response before I make anything with this data.</li>
  </ol>
  
  <p>I suppose it has to be something with async task and threads that I never used in C#. Searching for a simple example I lost in sophisticated tutorials and rich opportunities what could be done with tasks and threads in C#. 
  What is the best practice in this case? The very simple example would be very appreciated.</p>
  
  <p>UPD. The service uses a Framework 4.0</p>