Incorrect result formatting in PowerToys Run

### Microsoft PowerToys version

0.99.1

### Installation method

PowerToys auto-update

### Area(s) with issue?

PowerToys Run

### Steps to reproduce

Open power toys run and type `0.73/7300`

### ✔️ Expected Behavior

Get back the number `0.0001`

### ❌ Actual Behavior

Gives back the number `0.00010` (with a leading zero)

### Upload Bug Report ZIP-file

[PowerToysReport_2026-06-01-20-55-09.zip](https://github.com/user-attachments/files/28475572/PowerToysReport_2026-06-01-20-55-09.zip)

### Additional Information

Windows 11
I have multiple dotnet runtimes. The newest is 10.0.6
English is the system language.

### Other Software

_No response_

Start by reproducing the issue in PowerToys Run with the expression `0.73/7300`, using the reported PowerToys version and environment details as context. Compare the displayed result with the expected `0.0001` and actual `0.00010`; done means the calculation result is formatted without the extra trailing zero.

Written by the indexing model from the issue text.