Daily the company sells millions of chocolate bars.
The sentence sounds really odd to me but is it wrong?
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It's not wrong to start the sentence with an adverb of time or frequency, especially if the time or frequency of the action is essential for the writer or speaker.
"Daily I fall in love with waitresses" https://writersalmanac.publicradio.org/index.php%3Fdate=2011%252F01%252F18.html
Many people do. Oft has a brother most sincerely gone. Once more onto the beach dear friends.