Sample ProcessWire function usage.

processwire-function-split-results-into-row.php

/**
 * Returns site feature set markup
 * @return String - html markup of features
 */
function getFeatureSet() {
    $pages = wire('pages')->find("template=conversion-feature");
    if (!count($pages)) return '';
    $out = '';
    $config = wire('config');
    $perPage = 3;
    $featureItems = array_chunk($pages->getArray(), $perPage);
    //Create delegate template
    $template = new TemplateFile($config->paths->templates . "markup/feature-set.inc");
    //assign the rendered view to content variable to show up on _done.php
    $template->set('featureItems', $featureItems);
    $out .= $template->render();

    return $out;
}

//on your output template

<?php $counter = 0;?>
<?php foreach($featureItems as $i => $featureChunk): ?>
    <div class="row row-<?php echo $i?>">
        <?php foreach($featureChunk as $featureItem):?>
            <div class='col-lg-4 col-md-4 col-sm-4 text-center feature'>
                <div class='animated hiding' data-animation='fadeInUp' data-delay='<?php echo ($counter*500)?>'>
                    <?php echo $helper->faIconLong($featureItem->label_text); ?>
                    <h3><?php echo $featureItem->title ?></h3>
                    <?php if ($featureItem->body) echo $featureItem->body; ?>
                </div>
            </div>
        <?php ++$counter; endforeach; ?>
    </div>
<?php endforeach; ?>