When making a calculation the answer presents the numbers with spaces for "thousands separator"
when you copy the answer back to the search field to do further calculations it won't work because it does not accept spaces as "thousands separator"
replacing the spaces with decimal commas make it work.
In addition, using decimal commas when the zeros are less than 3 (thousands) it treats the decimals comma as a decimal point.
but if you continue with the zeros it will treat it as a decimal comma.
not sure if this is a feature or a bug but keeping commas for thousands and points for the fractional part as standard makes more sense. If this is a regional issue, currently I am on "international" and maybe assign the decinmal commas+points according to the preferred syntax to each region.