Division by \(b\) is multiplication by \(\displaystyle \frac1b\). If \(0\lt b\lt 1\), then \(\displaystyle \frac1b\gt 1\), which increases a positive number.

If \(b=1\), the reciprocal is one and the value stays the same. If \(b\gt 1\), its reciprocal is between zero and one and reduces the value.

Answer

Greater if \(0\lt b\lt 1\); equal if \(b=1\); less if \(b\gt 1\).