You start at his feet, of course! Then he can't get away!!

The best way to start is keep a notebook & pen with you everywhere you go. Every time someone preforms a task, ask them how they do it, and document it. Example, contact a Supplier to inform them of defective material. Then you document it in some way. I prefer flow charts. Next, compare what is being done to what the standard requires. This will help you build a gap audit while also learning the processes at your new company. I started doing that at my job. The plant was slated for closure. Senior leadership changed and the facility did not close. However, they had let their certificate expire. I show up and there is no evidence of a QMS so, rather than totally recreate the wheel, this is what I am doing. Some of these team members have been here doing same thing for over 25 years. If something is required but not being done, I only have to ask them to change that one thing. That is a much easier sell than to totally write a QMS just from the standard.