Pavonis wrote:
Seeing as some preteen children learn calculus in TNG, and humans in real life already learn and use complex calculus, it is not at all unreasonable to assume any Starfleet officer should have a grasp of simple calculus. And if they've defined division by zero, then Riker or Worf would know about it just as well as Data would.

I'm not saying they wouldn't have a grasp of calculus. I'm sure most of the adults (if not all) on Picard's ship have some grasp of calculus. But that doesn't mean they understand it perfectly. Data does understand calculus completely, without question. If he didn't then I'd be really surprised.
Also, Riker and Worf may know that 49/0 = infinity, or whatever, but to understand in depth, why this is the case, may not be something they are capable of.