This is the 5388th most frequent Korean word.
들어갔다고
"Went in" or "entered."
In this sentence, "들어갔다고" indicates reported speech stating that someone physically entered a location.
그가 방에 들어갔다고 말했어요.
He said that he went into the room.
Here, "들어갔다고" is metaphorically used to describe engaging in or encountering another issue.
문제가 해결될 거라고 하더니 다른 문제로 들어갔다고 합니다.
They said the problem would be solved, but apparently they went into another problem.
In this instance, "들어갔다고" signifies transitioning into an activity or phase, figuratively entering a state or condition.