ENGCOM-5308: FS/23038 Decimal qty with Increment is with specific values are not adding in cart #23306

 - Merge Pull Request #23306 from sertlab/magento2:FS/23038
 - Merged commits:
   1. 0104df6
   2. e80947e

Author: magento-engcom-team

lib/web/mage/validation.js

@@ -204,6 +204,21 @@
         return empty === 0;
     }
 
+    /**
+     *
+     * @param {float} qty
+     * @param {float} qtyIncrements
+     * @returns {float}
+     */
+    function resolveModulo(qty, qtyIncrements) {
+        while (qtyIncrements < 1) {
+            qty *= 10;
+            qtyIncrements *= 10;
+        }
+
+        return qty % qtyIncrements;
+    }
+
     /**
      * Collection of validation rules including rules from additional-methods.js
      * @type {Object}
@@ -1614,7 +1629,7 @@
                     isMaxAllowedValid = typeof params.maxAllowed === 'undefined' ||
                         qty <= $.mage.parseNumber(params.maxAllowed),
                     isQtyIncrementsValid = typeof params.qtyIncrements === 'undefined' ||
-                        qty % $.mage.parseNumber(params.qtyIncrements) === 0;
+                        resolveModulo(qty, $.mage.parseNumber(params.qtyIncrements)) === 0.0;
 
                 result = qty > 0;