William wants to invest in a stock that annually pays a high dividend. It pays a dividend of $$3\mathrm{.}00$ per share and has been paying this amount for the past $30$ years. Assume that the dividend payment will continue as is for the unforeseeable future. William plans on holding this stock for $20$ years and then sell it to buy a boat for retirement. The stock market on average returns $10\%$ per year over the long run. What is the most William should pay for this stock on a dividend discount basis?