So I am trying to write a script to checkout products on the website. <https://shop.telfar.net/collections/hats-belts/products/logo-belt-oxblood>. I can get to the checkout filling out all of the info. I am now trying to enter values into the credit card field looking like this.
[Here is where I am trying to enter in values](https://i.stack.imgur.com/8PMCc.png). The element ID is "number" but it is in an iframe, I tried the switch to frame method but nothing has happened. If someone could help it would be appreciated. Here is the code I have. Thank you

```
driver.switch_to.frame(0)
driver.find_element_by_xpath('//*[@id="number"]').click()

```

[This is the html of the element when I inspect it](https://i.stack.imgur.com/IOCRl.png)

[This Is when I select the element which should be inside the iframe](https://i.stack.imgur.com/HtZXz.png)