How to insert bulk in related table Laravel?

Now I have model:

$product = ProductModel::create($data);

Then I try to insert data to related tables like:

if ($request->filled('Occasion')) {
    $product->ProductOccasion()->save([
      'Occasions_Id' => $request->Discount,
    ]);
}

How to insert some values in:

$product->ProductOccasion()->save([
          'Occasions_Id' => $request->Occasion,
        ]);

Or iterate this in loop like:

foreach($values as $value) {

$product->ProductOccasion()->save([
          'Occasions_Id' => $value,
        ]);

}

via Chebli Mohamed