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If you have to set your anchor tag inside the div, you can also use CSS to set the anchor to fill the div via display:block.
As such:
<div style="height: 80px"><a href="#" style="display: block">Text</a></div>
Now when the user floats their cursor in that div the anchor tag will fill the div.
DON'T DO IT.
<A>NCHOR</a>.<DIV> into a link, use "Javascript" to wrap the <DIV> inside an <A>NCHOR</A><DIV> use the onclick event handler... and don't call it a "link".