Reproduction steps:
1. Create and Open new Project
2. Make two empty GameObjects
3. In the Inspector Window set the first GameObject's X value to 6 and the second GameObject's X value to 3
4. Select both GameObjects inside the Hierarchy Window
5. In the Inspector Window set the X variable to /=3

Expected result: GameObjects' X values are divided by 3
Actual result: GameObjects' X values are set to 0

Reproducible with: 2021.2.2f1, 2021.2.9f1, 2022.1.0a6, 2022.1.0b6, 2022.2.0a3
Not reproducible with: 2021.2.1f1, 2022.1.0a1, 2022.1.0a5
Could not test with the 2019.4.34f1, 2020.3.26f1 versions because they do not support this feature