title: How to find frequency that one "Order" will have two of the same parts
body: <p>I'm stumped on a problem. I'm willing to complete this in Access or Excel - whichever you all prefer!</p>
  
  <p>I have two columns, order# and part#. Order # appears more than once if there was more than one part ordered in that order. A sample of potential data looks like this:</p>
  
  <p><em><strong>Order #     |   Part #</em></strong></p>
  
  <p>1234     |    A</p>
  
  <p>1234     |    B</p>
  
  <p>2344     |    C</p>
  
  <p>3334     |    B</p>
  
  <p>2431 | A</p>
  
  <p>2431 | B</p>
  
  <p>Sorry about the formatting! Basically, I'm trying to figure out the frequency that, for example, parts A and part B are ordered together - in this case 2 times. I'm not really interested about when a part is ordered individually, but rather in groups of 2, 3, etc.</p>
  
  <p>Any help is greatly appreciated!</p>