The National Library of Virtual Manipulatives has a great application to show multiplication in different ways.

Find the factors: This is a great Illuminations activity to link area and multiplication. Click and drag to draw a rectangle. The area of your rectangle will be displayed. If the area is equal to the given number, the rectangle will stay but if the area is not equal to the given number, it will disappear. The length and width of the rectangle are factors of your number.