[ibara]

Oh, it looks like you did the formatting. In the future, you could just stick to using ntfs-3g and not bother reformatting.

Anyhow, in disklabel, you can use sizes postfixed with M or G. So you could have just used 1863G.

EDIT: Or just do what jggimi suggested, though I would still stick with using ntfs-3g, seeing as

# pkg_add ntfs-3g

is way shorter than doing anything else.