Maidus Repeater Test

 $i = 0;

        if (have_rows('repeater')):

                    echo 'div start';
                    echo '<br/>';

            while (have_rows('repeater')): the_row();
                $i++;

                echo the_sub_field('title');
                echo '<br/>';
                if ($i == 5) {
                    echo 'div end';
                    echo '<br/>';
                }
            endwhile;
        endif;
        ?>