I applied through college or university. The process took 1 week. I interviewed at PwC (Boston, MA) in Oct 2014
Interview
We introduced our-selves first and then we walk through my resume for about 15 minutes and then he asked me 4 behavioral questions, like leadership, muti-tasking. And last, he gave me sometime to ask a few questions about the company and the position.
Apply online with classic CV + cover letter.
Invited to an interview two weeks after with HR and then interview + case study with a senior manager. Very basic accounting questions. State your motivation and why audit suits you.
Nice staff. Overall process is decent and rather fast (the answer came in the week after the interview).
I applied through my university and received documents to be filled out online two weeks later. First I went through on campus recruiting and I met with a manager from PWC. It was very conversational interview. He asked about teamwork examples like bad team players, how you handled situation.