if statement - How to remove the error 'not all code paths return a value' in c# -

i error in c#: 'not code paths return value'. know main reason behind if not followed else. if not want compiler if condition inside if not satisfied? example, in following program of trying find quotient without use of / operator:

namespace consoleapplication1 {     class program     {         public int quotient( int dividend, int divisor)         {             int i, quotient = 0, remainder;             = divisor;             while (i <= dividend)             {                 += divisor;                 quotient++;                 remainder = dividend - i;                 if (i == dividend || ((i < dividend) && (remainder < divisor)))                 {                     return quotient;                 }             }         }         static void main(string[] args)         {             program obj = new program();             console.writeline("enter first number:");             int = convert.toint32(console.readline());             console.writeline("enter second number:");             int b = convert.toint32(console.readline());             program obj = new program();             int quotient = obj.quotient(a, b);             console.writeline("the quotient " + quotient);         }     } } 

here want compiler return quotient if condition (i == dividend || ((i < dividend) && (remainder < divisor))) true. in case condition false, want flow go while (i <= dividend) , increase i , quotient. compiler says 'not code paths return value'. how supposed rid of error? supposed give block of else? also, there try-catch method overcome error?

the reason error because if code not go if (i == dividend || ((i < dividend) && (remainder < divisor))) condition or fails function has nothing return - simplicity return 0 default:

public int quotient( int dividend, int divisor) {     int i, quotient = 0, remainder;     = divisor;     while (i <= dividend)     {         += divisor;         quotient++;         remainder = dividend - i;         if (i == dividend || ((i < dividend) && (remainder < divisor)))         {             return quotient;         }     }     return 0; }