grep -n 'cgi-bin' /etc/httpd/conf/http.conf

Gives you something like:

593:ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
596:# "/var/www/cgi-bin" should be changed to whatever your ScriptAlia
+sed
599:<Directory "/var/www/cgi-bin">
899:#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
[download]

/var/www/cgi-bin is the location of my ScriptALias directory and this is where the cgi script should be placed.

If your http.conf file is not located in the same location mine is then "find" or "locate" it.

find / -name "httpd.conf"
locate "httpd.conf"

If for some reason you are running Apache on Windows then do a search for the config file and manually search it for the cgi-bin location.