Google Colab

Google Colab is a free online Jupyter notebook you can access for small ML training exercises.
It supports Python and R.

Google Drive

Colab supports mounting Google Drive.
However, files are cached locally on the VM which only has ~100GB.
This means you cannot directly write (e.g. via curl) files over 100GB to your Google Drive folder.

There are some tricks you can try though:

curl

Run curl -r 0-4999999999 [url] -o part1 to download ~50GB your Google Drive
Wait ~10 minutes for the cache to clear and files to copy over
Do curl -r 5000000000-9999999999 [url] -o part2
Repeat until you have the whole >50GB file
.

Colab Pro

Claims faster GPUs, longer runtimes, and more memory.
However nothing is guaranteed and VMs are still preemptible.
Runtimes are limited to 24 hours as opposed to 12 hours for free users.