六位數　但不是六位數尾
Six figures, but not in the low six figures. I'd

Cantonese Sentence Breakdown

六 luk6
six
位 wai6
position
location
place
seat
classifier for people (honorific)
classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
throne
post
rank
status
數 sou3
number
figure
several M: 个gè [个]
fate
an amount of money
a debt
但 daan6
but
不是 bat1 si6
is not
數尾 sou3 mei5
remaining balance (on a debt)