I have pages that I haven't touched since writing them ranking #1 for ULTRA competitive terms using oldschool SEO

kw in title
kw in desc
kw in meta kw

H1 with keyword
first paragraph kw bolded and sprinkled throughout as whole and pieces if long.

H2 with kw
paragraph again contains kw

throughout the rest of the page let the kw occur naturally in your writing, dont overstuff

last P make sure it is as strong as the first for the kw phrase

Links to other pages on your site with kw as part of anchor

Tada!

Oh yeah and lots and lots of inbound links with kw as anchor text

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