	poolFraction := rewardWeight.Weight.Quo(weightsSum)
func (d LegacyDec) QuoMut(d2 LegacyDec) LegacyDec {
	// multiply by precision twice
	d.i.Mul(d.i, squaredPrecisionReuse)
	d.i.Quo(d.i, d2.i)

	chopPrecisionAndRound(d.i)
	if d.i.BitLen() > maxDecBitLen {
		panic("Int overflow")
	}
	return d
}
// mutable quotient truncate
func (d LegacyDec) QuoTruncateMut(d2 LegacyDec) LegacyDec {
	// multiply precision twice
	d.i.Mul(d.i, squaredPrecisionReuse)
	d.i.Quo(d.i, d2.i)

	chopPrecisionAndTruncate(d.i)
	if d.i.BitLen() > maxDecBitLen {
		panic("Int overflow")
	}
	return d
}
powerFraction := math.LegacyNewDec(vote.Validator.Power).QuoTruncate(math.LegacyNewDec(totalPreviousPower))
