I applied for the position online just after my graduation in 2012.
EY has 4 stages of staff hiring:
1. Tests (numerical & verbal reasoning, English - multiple choice via computer, accounting - multiple choice + calculation on paper).
2. Interview with HR.
3. Interview with manager (the most important stage, when basically whether you will be hired is decided).
4. Interview with partner.
The whole process of hiring is very long - it can take up to 4 months.
I successfully pass the first two stages. My test results were not outstanding, but it is not so important, because how you act on interview is essential. On my second interview I was nervous, and could not crack some numbers. Also, I refuse to change my mind in relation to one behavioral question, although interviewers gave me hints that they expect different answer.