Closing as not a Construct 2 bug; your server appears to be configured incorrectly. I checked the server headers for biosphereenterprises.com/getdivision.php, and it sends the header "Content-Type: text/html". According to here if you don't specify a charset you either get ISO-8859-1, which is a character set that does not include a divide symbol, or the browser will take a wild guess. My guess is you're actually using UTF-8, in which case you absolutely must specify this using the "Content-Type: text/html; charset=utf-8" header. Otherwise you shouldn't expect anything to get transmitted correctly.
Character encodings can be a bit complicated, but if you 1) use UTF-8 everywhere, and 2) make sure all settings and transmission explicitly says it's UTF-8, then you shouldn't have any problems.