/ % div

// Zapisuje a / b w result, a % b w rest
void VeryLongInt::div(VeryLongInt &b, VeryLongInt *result, VeryLongInt *rest){
	result->digits.clear();
	rest->digits.clear();
	if (b.isZero() || !this->isValid() || !b.isValid()){
		*result = NaN();
		*rest = NaN();
		return;
	}
	*result = Zero();
	*rest = *this;
	VeryLongInt one = 1;
	while (*rest >= b){
		unsigned int shift = rest->numberOfBinaryDigits() - b.numberOfBinaryDigits();
		if (shift > 0)
			shift--;
		*rest -= b << shift;
		*result += one << shift;
	}
}

VeryLongInt& VeryLongInt::operator%=(VeryLongInt &b){
	VeryLongInt result;
	VeryLongInt rest;
	div(b, &result, &rest);
	*this = rest;
	return *this;
} //Ty

VeryLongInt& VeryLongInt::operator/=(VeryLongInt &b){
	VeryLongInt result;
	VeryLongInt rest;
	div(b, &result, &rest);
	*this = result;
	return b;
} //T