QuotientGenerator.scala

  def divideScalars[S, T](
    divisors: Map[Int, S], scalars: Map[Int, T]
  )(implicit s: scala.math.Numeric[S], t: scala.math.Numeric[T]): Map[Int, Double] = {
    val df = divisors.mapValues(x => s.toDouble(x))
    scalars.mapValues(x => t.toDouble(x)).transform((k, v) =>
      df.get(k) match {
        case Some(divisor) if divisor != 0 => v / divisor
        case None => 0
      }
    )
  }