Custom Number Format

[Uzlander]

Can anbody help me or direct to some solution, the numbers going to be mostly large (6+ figures, local currecy unit's feature) so the best looking format (to me) is space (just empty space, let it take space of say 2/3 of a regular character).
I think it would be great to add this option to nuNumber formats to pick, but for now some possibly css/js workaround would help me.
Many Thanks))

[kev1n]

Hi,

Do the numbers only need to be displayed, or should they also be editable/changeable by the user?

[Uzlander]

editable numbers, also calculable too when needed