I heard this sentence. 仕事はひまでしたが、うちでよるいちいちまでレポートを書いています。
I looked up いちいち and it could mean
separately. I'm guessing this in sentence it's saying 11. However, I'm wondering if いちいち normal for saying 11.
You got it wrong. Even if it meant
I have not met any cases where it means