How do you get 999 999 999 bells on animal crossing

Go to other peoples towns that have different fruit to you and collect their fruit. Then go back to your town and plant the different fruit in your town. Then change the date to a month later and pick the fruit and sell it to tom nooks and you will get 500 bells for each piece of different fruit. YOU CAN ONLY DO THIS WITH A FRUIT THAT IS NOT IN YOUR TOWN. E.G my town has apples, my friend's town has cherries. In plant cherry trees in my town. I get lots of money. By the way it takes a lot of patience because you have to keep changing the date.