public void DivisionWithDifferentExponents()
{
Exponential a, b, c, d, expected;
a = new Exponential("10.0");
b = Exponential.Exact("60");
c = a / b;
d = c / b; // divide twice by 60
expected = new Exponential("2.8e-3");
Assert.True(d.Approximates(expected));
}