2 Chronicles 34:7

he tore down the altars and beat and crushed the Asherim and the carved images into powder, and cut to pieces all the incense altars throughout the land of Israel. Then he returned to Jerusalem.

2 Chronicles 31:1

Now when all of this was finished, all Israel who were present went out to the cities of Judah, and smashed the [pagan] pillars (obelisks, memorial stones) in pieces, cut down the Asherim (wooden symbols of a female deity), and tore down the high places and the altars [of idolatry] throughout all Judah and Benjamin, as well as in Ephraim and Manasseh, until they had destroyed them all. Then all the sons (descendants) of Israel returned to their own cities, each to his own property.

Deuteronomy 9:21

I took your sinful thing, the calf which you had made, and burned it in the fire and thoroughly crushed it, grinding the metal thoroughly until it was as fine as dust; and I threw its dust into the brook that came down from the mountain.

2 Chronicles 34:1

Josiah was eight years old when he became king, and he reigned for thirty-one years in Jerusalem.

Treasury of Scripture Knowledge

Summary

And when he had broken down the altars and the groves, and had beaten the graven images into powder, and cut down all the idols throughout all the land of Israel, he returned to Jerusalem.

He returned

Bible References

Beaten

2 Chronicles 34:1
Josiah was eight years old when he became king, and he reigned for thirty-one years in Jerusalem.
Deuteronomy 9:21
I took your sinful thing, the calf which you had made, and burned it in the fire and thoroughly crushed it, grinding the metal thoroughly until it was as fine as dust; and I threw its dust into the brook that came down from the mountain.

He returned

2 Chronicles 31:1
Now when all of this was finished, all Israel who were present went out to the cities of Judah, and smashed the [pagan] pillars (obelisks, memorial stones) in pieces, cut down the Asherim (wooden symbols of a female deity), and tore down the high places and the altars [of idolatry] throughout all Judah and Benjamin, as well as in Ephraim and Manasseh, until they had destroyed them all. Then all the sons (descendants) of Israel returned to their own cities, each to his own property.