だんだん分かってきた

gradually came to understand

→ 段々
phrase Rare #26,255
gradually came to understand Expresses that something is becoming clearer or easier to understand over time, often translated as “I'm starting to understand.” The ending きた shows a change that has progressed up to the present.
JA: 先生の説明を聞いて、だんだん分かってきた。
EN: After listening to the teacher's explanation, I'm starting to understand.

だんだん分かってきた友達が来ない

I'm beginning to understand, but my friend isn't coming.

だんだん分かってきた

You're starting to get the hang of it.

— エブリシング・エブリウェア・オール・アット・ワンス (2022)

だんだん分かってきた

I'm gradually starting to understand.

三葉の声何が起きているのかだんだん分かってきた

(Mitsuha's voice) I'm gradually starting to understand what's happening.

— 君の名は。 (2016)

だんだん分かってきた

I'm gradually starting to get it.

— AKIRA (1988)

だんだん分かってきた

I'm gradually starting to understand.