Not sure I follow you. But, I'll copy below some keyword placement notes I took while reading a book on web marketing.
"Keyword Density 2-3 %, but not as important anymore. Put keywords in title tag, description tag, keyword tag, alt tags, header tags, first 25 words of page, last 25 words of page, bold them at least once on the page, italicize or underline at least once."
Each page should have unique tags. No duplicates.
4 main ones: title, description, keywords, robots
Title: Title of your page in search results. No more than 7 words & less than 60 characters, including spaces (max for google). Include your keywords. The post "|" separates distinct phrases for Google.
Description: Description of your page. Use keywords twice if possible here (BING) but no more. Keep compelling and accurate as to what's on the page.
Keywords: Include main keywords, those that are main focus of website, and those associated with theme of webpage. Don't stuff too many. Separate with comma then space. Don't use words consequtively. ex. marketing, serach engine, marketing resources...