How many stops by bus 980 or 980 Express from Dongzhimen Station to Miyun Bus Station?

Could anyone tell me?
And when I transfer at Miyun Bus station how many stops (buses bus Mi 37, Mi 50, or Mi 51) to Simatai Village Station? And if possible what are the symbols for the stops in Chinese?

I read somewhere that people fall for scams because they were advised to get off the bus earlier than needed and force to take taxis etc...
Thank you!