ㄏㄨㄚˋㄓㄥˇㄨㄟˊㄌㄧㄥˊhuàzhěng‑wéilíng

化整为零
  1. 整體分成許多零散部分 化整為零滲透對方」。

to break up the whole into pieces (idiom)​; dealing with things one by one, divide and conquer
montage financier