Useless math function.

intfract.py

def intfract(p, q, precision=10):
    """Return a tuple from the integer division p/q.
    The first element is the integer part (p // q).
    The second is a list of length `precision` containing the decimals.
    
    Note: if the division is exact, the decimals list will not contain the
    trailing 0s.
    
    """
    intpart, rest = divmod(p, q)
    decimals = []
    
    for _ in xrange(precision):
        if not rest:
            break
        decimals.append(rest // q)
        rest *= 10 * (rest % q)
    
    return intpart, decimals