The phrase "put at the bottom" is correct and usable in written English.
It is used to describe the location of something. For example, "Please put the cake at the bottom of the oven."
He put at the bottom: "Forget everything I told you".
Fit the dough into the dishes, pressing it gently into the almonds you've already put at the bottom.
The time has come for an independent investigation, led by prominent citizens, that would report to us how this problem was put at the bottom of the list.
The Black people who had been shipped from Africa and sold as slaves were put at the bottom of the society and experienced the most miserable life".
The lifeguards also found the punji sticks that we had put at the bottom of the trench, and, instead of leaving them where they belonged, he locked them inside the lifeguard hut.
We know that when faced with other priorities like road maintenance, saving bus routes and new housing developments, cycling and walking will be put at the bottom of most councils' to-do lists".
Get some cotton balls for cleaning sensitive areas like behind the ears or under the eyes, and a few towels for drying off and putting at the bottom of where your cat will be bathed.
And a lot of people put them at the bottom — I put them at the top".
She pulled the cups down and put them at the bottom of daddy's back.
"He had written a great poem, and I put it at the bottom of my desk.
Put it at the bottom of my in-tray and tried not to think about it.
