-- I have my eye on a real spiffy car that I want to buy.
-- It costs $5,400 and it will only be available for 4 months.
-- How much do I have to save every month if I want to
buy the car just before it disappears ?
The equation is (4) x (Monthly saving) = $5,400 .
Divide each side by 4 : Monthly saving = $5,400 / 4
There's your division equation.