anyone in management / business consulting?

[Rhone]

So I've applied for a research position at a fairly large, business consulting firm here in DC. To date, they have had me come in for 3 sets of in-person interviews, 1 hour each, in addition to the 1 hour phone interview I had with a recruiter at the beginning of the process, for a grand total of 9 hours of interviews. This is my first time ever applying for a job like this, and I'm curious if this is "normal" in the consulting world. Right now, as you can imagine, it's feeling quite excessive.