Introduction
Tap the ellipsis to the right of the document > Delete > Delete. Tap the profile icon. Tap Recycle Bin > Delete > Delete.
Instructions
1) Tap the ellipsis to the right of the desired document.
2) Tap Delete.
3) Tap Delete again.
4) In the top left-hand corner, tap the profile icon.
5) Tap Recycle Bin.
6) Tap Delete.
7) Tap Delete again.
CAUTION: This will permanently delete your file(s), and they will not be recoverable.
OUTCOME
The files you have selected will be permanently deleted from OneDrive for Business.