FixedDecimal.divideToScale

auto divideToScale(int  S2)(const  FixedDecimal!(I,  S2)  rhs,
          ubyte  resultScale)

const @safe pure

Division with an explicit result scale, rounded half-even.

`rhs`	the divisor (same storage class, any scale form).
`resultScale`	fraction digit count of the result.

FixedDecimal!(I, -1) at exactly resultScale.

FixedDecimalException on zero divisor, scale beyond the

precision, or rounded coefficient overflow.