
Check an example:
Dim entered_number As Long
entered_number = 564
Dim s As String
s = CStr(entered_number)
Dim a(9) As String
a(0) = "ZERO"
a(1) = "ONE"
a(2) = "TWO"
a(3) = "THREE"
a(4) = "FOUR"
a(5) = "FIVE"
a(6) = "SIX"
a(7) = "SEVEN"
a(8) = "EIGHT"
a(9) = "NINE"
Dim result As String
Dim i As Integer
For i = 1 To Len(s)
result = result & a(CInt(Mid(s, i, 1))) & " "
Next
MsgBox result