Since the achievement is self-explanatory and it doesn't have any exploits or easy ways to unlock it, here's just the word of warning:
If you're hitting the breakables with uncommon attack (e.g. Slash Attack skill for Destroyer class, which is attacking the enemy with all equipped weapons plus increased DPS for that weapon) or with "spell attack" then hits like that will not count towards the achievement! Switch to other/common/ranged attack for it to count.
Be careful and check if it works for your skill/combination attack. It's definitely a bug but I don't think that devs will fix it.