C#

<br />
Imports SpeechLib<br />
Imports Speech<br />
<br />
Public WithEvents RC As SpSharedRecoContext<br />
Public myGrammar As ISpeechRecoGrammar<br />
<br />
RC = New SpSharedRecoContext<br />
<br />
myGrammar = RC.CreateGrammar<br />
myGrammar.DictationSetState(SpeechRuleState.SGDSActive)<br />
<br />
Dim theRecognizer As ISpeechRecognizer<br />
theRecognizer = RC.Recognizer<br />
<br />
theRecognizer.DisplayUI(Me.Handle.ToInt64, "Speech Training", SpeechStringConstants.SpeechUserTraining, vbNullString)<br />

digitNames = new string[] { "", "one", "two" ... };
tensDigitNames = new string[] { "", "ten-", "twenty-", "thirty-" ... };
magnitudeNames = new string[] { "", " thousand", " million" ... };

1. Initialize a string called "result" to the fractional part preceded with an "&"
2. Initialize an integer array called "number" of the digits of the number, from LSD to MSD
   (in your example, {9, 8, 7, ... 3})
3. Iterate through the digits in "number" to get the variables "curDigit" and "curDigitIdx"
4. Perform the following logic using curDigitIdx (the index in your array) and curDigit
switch (curDigitIdx % 3) {
    case 0:
        result = string.Format("{0}{1} {2}", digitNames[curDigit],
                 magnitudeNames[curDigitIdx / 3], result);
        break;
    case 1:
        result = string.Format("{0}{1}", tensDigitNames[curDigit], result);
        break;
    case 2:
        result = string.Format("{0} hundred {1}", digitNames[curDigit], result);
        break;
}