What does Nehemiah 11:12 mean?

His relatives, who worked with him in the temple, totaled eight hundred twenty-two men. There was also Adaiah, son of Jeroham, grandson of Pelaliah, great-grandson of Amzi, and descendant of Zechariah, Pashhur, and Malchijah. Nehemiah 11:12 - Modern Text Bible

(This verse names another priest, Adaiah, and his family line, emphasizing the large number of priests serving together.)