Yes, hire about 100,000 employees. Starting a big-4 firm isn't easy.
If you're simply trying to find a job at one of the big 4, start with their UK graduate recruitment websites. Not all recruit directly into consulting, so decide whether you want to go down the audit route or not.
Put as politely as possible -- you may need to work on your English in order to bring it to a working standard. Without near-fluency in English, you'll struggle to find a position in the UK.