plazma50,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function() {
var val1 = 12.9, val2 = 0.78, num = (val1*val2).toFixed(2).match(/\.?\d+/g);
$("#one").html(num[0]);
$("#two sup").html(num[1]);
});
</script>
</head>
<body>
<span id="one"></span>
<span id="two"><sup></sup></span>
</body>
</html>