YOU SAID:
Hello how was your day. My day was very good by the way.
INTO JAPANESE
こんにちは、今日はどうでしたか。ちなみに私の一日はとても良かったです。
BACK INTO ENGLISH
Hello, how was it today? By the way, my day was very good.
INTO JAPANESE
こんにちは、今日はどうでしたか?ちなみに、私の一日はとても良かったです。
BACK INTO ENGLISH
Hello, how was it today? By the way, my day was very good.
That didn't even make that much sense in English.