Update IMultiplyOperators`3.xml (#8492)

Author: xtofs

xml/System.Numerics/IMultiplyOperators`3.xml

@@ -78,7 +78,7 @@
         <param name="left">The value which <paramref name="right" /> multiplies.</param>
         <param name="right">The value which multiplies <paramref name="left" />.</param>
         <summary>Multiplies two values together to compute their product.</summary>
-        <returns>The product of <paramref name="left" /> divided by <paramref name="right" />.</returns>
+        <returns>The product of <paramref name="left" /> multiplied by <paramref name="right" />.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>