On your daughters phone, go to Settings > [name on top] > Media & Purchases. If your Apple ID is shown there you can sign out and use her Apple ID for purchases. Any apps that were downloaded with your Apple ID on her device would need to be removed and redownloaded with her Apple ID. They would still work, but not be able to be updated. This will prevent apps she downloads from showing up on your phone.
For the matter of receiving the verification code, you will want to remove her device from the list of Trusted Devices that was setup with two-factor authentication. Here is a support article showing where you can find this info and also how to remove it.
Check your Apple ID device list to find where you're signed in - Apple Support
For more information on Two-Factor authentication, review this article that explains the difference from Trusted Devices and Trusted Phone Numbers which are also used for authentication.
Two-factor authentication for Apple ID - Apple Support