I know your pain. I'm 6' and always on the look out for pants and jeans that aren't expensive but cut long. I'm in the US, but right now, for jeans Express works for me. They have long cut and they are about a 36" inseam and they ain't ridiculously expensive like the "designer" jeans that have longer inseams. Also, I know Zara has longer inseams for their pants, but never checked out their jeans. They may have a longer than average inseams like their pants and they aren't overly expensive either.

Good luck!