fails:BigDecimal#div with precision set to 0 returns NaN if NaN is involved
fails:BigDecimal#div returns NaN if NaN is involved
fails:BigDecimal#div returns NaN if divided by Infinity and no precision given
fails:BigDecimal#div returns NaN if divided by zero and no precision given
fails:BigDecimal#div returns NaN if zero is divided by zero
fails:BigDecimal#div returns NaN if (+|-) Infinity divided by 1 and no precision given
