<?php
$how_often_to_show_widget = 2;

if (have_posts()) :
    $post_count = 0;
    while (have_posts()) : $post_count++;
        the_post();


        if (is_active_sidebar('inter-posts-1') && $post_count % $how_often_to_show_widget == 0): ?>
            <div class="widget-area">
                <?php dynamic_sidebar('inter-posts-1'); ?>
            </div>
        <?php endif; ?>


        <?php get_template_part('template-parts/post/content', get_post_format());

    endwhile;
endif;
?>