In on page seo You can cover the keywords in the content itself but keyword density should be less than 5 % but in off page create more backlinks for that link and submit more to the targeted keywords

For on page seo target keyword must be cover the whole web page title & unique keyword use.

Targeted keywords should be already implemented in the ready text. Assume they are in its very beginning (as the first sentence), in reasonable diversity in it's body and in its title. Than it is a matter of relevant backlinks. How to get backlinks and where to get is a matter of personal decision and ability. That's in short the whole targeting thing.

we need to search volume, number of clicks per day and their average daily cost, the actual number of advertisers currently bidding on the keyword and the actual AdWord ads that are running.