yī​gè​gè

individually

一个个 (一個個) yī​gè​gè
individually numeral
each and every one; one by one

One by one, the children put on their new clothes.

successively numeral
one after another in a sequence

Frequency

Movie subtitles
2.09 per million appears in 1% of films
Written text
24.5 per million

Sources

Definitions
CC-CEDICT