In voyager it just looks cut off

So, what’s happening is that it interprets a number at the start of a line, followed by a dot, to be an enumeration:

1. One
2. Two
3. Three

And then it indents that text to a certain fixed width, which is why a very long number sticks out to the left.

Why your comment didn’t work, is for two reasons:

1. It stops interpreting a number as an enumeration when you go beyond 9 digits. That’s why your first and last example didn’t work.
2. It automatically ‘fixes’ the enumeration, if the numbers aren’t successors. I actually wrote “123456789.” at the start of this line, but it changes it to a “2.”. That’s why the “2334.” and “23145524.” you wrote got changed to a “124.” and “125.”, which made them too short to really look broken.