Content structure / Dividing long content in to 2 parts top and bottom

Hello, I want first 350 words will be in top then Products and then rest contents will be in bottom.
Now the question is suppose if I have first paragraph with 300 words then I want 300 words will be in top and then product and then rest contents will be in bottom.

I’ve used this code to move content in bottom (old post -> https://kriesi.at/support/topic/how-to-write-content-in-bottom/)

// move category description
add_action('init', 'woocommerce_mod');
function woocommerce_mod() {
	remove_action( 'woocommerce_before_shop_loop', 'woocommerce_taxonomy_archive_description', 11 );
	add_action( 'woocommerce_after_shop_loop', 'woocommerce_taxonomy_archive_description', 5 );
}

Please kindly provide me code to do that and also please guide me how to customize that code. Or can it be done for a single particular product category ?