They can be more or less than three digits, but the counter on Doreen's website only goes up to 999.
As it says on the website itself: To interpret numbers that have more than 3 digits, simply type in the first 3 numbers, read the answer, and then type in the next set of numbers, and that subsequent answer is added to the first answer to give you the overall meaning.
78:
Your present focus and actions have tapped into the Universal financial flow of abundance. Stick with your current plans, as they’re right on the money.
_________________
Quote:
"A memory is something that has to be consciously recalled, right? But it's different from a memory locked deep within your heart. Words aren't the only way to tell someone how you feel...As long as I'm with you, as long as you're by my side, I won't give up even if I'm scared." Tifa Lockheart, Final Fantasy VII