45 / 9 = ?

Explanation

Division is often denoted by symbols like "/" or "÷". It is the fourth basic mathematical operation of arithmetic, the others being addition, subtraction and multiplication. Division is the fourth one as it requires multiplication to be defined. In the expression a / b = c, a is called the dividend or numerator, b the divisor or denominator and the result c is called the quotient. Dividing two integers may result in a remainder.