<?php
$other_page = 12;
?>
<p><?php the_field('key_#', $other_page); ?></p>
<?php
// get variable
$variable = get_field('key_#', $other_page);
// repeater field: note that the_sub_field and get_sub_field don't need a post id parameter
if( have_rows('repeater_field_name', $other_page) ): ?>
<ul>
<?php while( have_rows('repeater_key_#', $other_page) ): the_row(); ?>
<li>sub_field_1 = <?php the_sub_field('sub_field_1'); ?>, sub_field_2 = <?php the_sub_field('sub_field_2'); ?>, etc</li>
<?php
$sub_field_3 = get_sub_field('sub_field_3');
// do something with $sub_field_3
?>
<?php endwhile; ?>
</ul>
<?php endif; ?>