Trouble with Organizing Post Results

Issue: i am trying to display all the posts that belong in a certain category. I’ve figured out how to do that but it shows the results in one long column. What i’d like to do is determine the # of columns to show the results in (in this case 3 columns) and then the posts would be automatically sorted and listed.

so visually it would be great like this…

post a post e post i
post b post f post j
post c post g post k
post d post h post l

The coding I came up with is:

<?php query_posts('cat=46&orderby=title&order=asc'); ?>
<table border="1">
<tr>
<td valign="top">
<?php
$iTotalPosts = 0;
while (have_posts()) : the_post();
$iTotalPosts++;
endwhile;

$iPostCounter = 1;
$iNumberofColumns= 3;
$iPostsPerColumns = ceil($iTotalPosts/$iNumberofColumns);

if( $iPostsPerColumns == 0 ){
    $iPostsPerColumns = $iTotalPosts;
}

while (have_posts()) : the_post();
if (($iPostCounter % iPostsPerColumns) == 0){
echo('</td><td valign="top">');
}
?>
<span class="listings"><a href=" <?php the_permalink(); ?>" title="Permanent
link to <?php the_title(); ?>"><?php the_title('','','>'); ?></a></span>
<?php
$iPostCounter++;
endwhile;
?>

</td>
</tr>
</table>

it’s not quite there yet as i get an error message of

Warning: Division by zero

the line that causes the error i believe is:

$iPostsPerColumns = ceil($iTotalPosts/$iNumberofColumns);

If it’s division by zero error, that means the $iNumbersofColumns must not be passing correctly?