Go to Start-->Run-->type Calc and Check the following... .
2704/50 = 54.08 Works Fine
2704/51 = 53.01960784 Works Fine
But.....
2704/52 = Try yourself Doesn't Work
2704/53 = 51.01886792 Works Fine
2704/54 = 50.07407407 Works Fine
Microsoft Calculator Failed
Try it ....
Amazed .. !! right ??? 
Do u know the reason behind such fault ??? 
It is so because ...........
52 itself is the answer 
try 52 x 52 = 2704