Paychex interview questions

I applied online and within a week, I received an email to take an online assessment which consisted of a math section than a verbal, I scored 95% so I got a call the next day. It was simple math, shouldn't be too hard for anyone who went to high school. I than proceeded to have a phone interview, which was basically just a run through of my resume, then a run through dog the job. After that phone interview I was invited to a face to face interview which was suppose to be with two supervisors but instead it was with the branch manager. It was a standard interview some behavioral questions, scenario questions, more info on the company and position. After this interview I was invited back to interview with the supervisors and to shadow a current employee. After shadowing the company employee I had a mini wrap up with the supervisors and the branch manager. I got a call within a few hours with a job offer.

I only had one interview for this position but it is supposed to be a six month process with 5 interviews.