InfInt& InfInt::operator/(const InfInt& ob) const{

    StringCalculator calculator;

    if(*this < ob) {
        InfInt* zero = new InfInt("0");
        return *zero;
    }
    if(*this == ob) {
        InfInt* zero = new InfInt("1");
        return *zero;
    }

    string binaryA = this->BinaryStrFromInftInt();
    string binaryB = ob.BinaryStrFromInftInt();

    calculator.BinaryPaddingRemove(binaryB);
    calculator.BinaryPaddingRemove(binaryA);

    unsigned int lenA = binaryA.length();
    unsigned int lenB = binaryB.length();

    InfInt *temp = new InfInt(0);

    string tempBinaryResult;


    if (ob == *temp || *this == *temp) {
        delete(temp);
        throw "can't divide  zero";
    }

    string R = "0"; //remain
    string Q = "";

    for (int i = 0; i < lenA; ++i) {
        Q += ZERO_ASCII;
    }


    for (int i = 0; i < lenA; ++i) {
        R += ZERO_ASCII;
        R[R.length() - 1] = binaryA[i];

        if(!calculator.BinaryBigger(binaryB, R)) {
            R = calculator.MinusBinaryStr(R, binaryB);
            Q[i] = ONE_ASCII;
        }

    }

    temp->SetInfIntFromBinaryStr(Q);

    bool isNeg = true;
    if((this->isNeg && ob.isNeg) || (!this->isNeg && !ob.isNeg)) {
        isNeg = false;
    }
    temp->isNeg = isNeg;
    temp->CutZeros();
    return *temp;

}