How many years did the legend of Jiang Ziya protect the Zhou Dynasty?

Legend has it that one day, Zhou Wenwang was fishing by the Weihe River and met Jiang Ziya. His hook was only three inches away from the water, which means: "He who wants to take the bait will turn back." . He is a clever man, but he didn't meet a wise Lord to help him.

King Wen saw this and said, "I have been looking forward to my son for a long time. In other words, Wang Wen's grandfather has been looking for a wise man to help govern this country. I finally found him today. Please come back. However, in order to test the sincerity of King Wen, Jiang Ziya asked King Wen of a country to pull a rickshaw for him. Wen was willing at first, but the more he pulled, the more tired he became. He said to Jiang Ziya, "I really can't go on. Ziya asked him to try again, but he barely took a few steps and refused to go any further. Ziya had to get off the bus and say to him, "You have only gone 867 steps, which shows that the Zhou Dynasty has only been here for so many years. King Wen listened and let Ziya get on the bus, willing to pull it down again. Unfortunately, the cat was leaked and there is no remedy. "