What is x when 87 divided by x equals 23?

To find the answer, just divide the dividend by the quotient: 87 ÷ 23 = 3.7826086956522

To prove this, let's compute 87 divided by 3.7826086956522: $\frac{87}{3.7826086956522} = 23$

How does it work?

Asking what the value of x could be when 87 divided by x gives a result of 23, is equivalent to solving the following equation:

$\frac{87}{x} = 23$

Multiply both sides by x: $\frac{87 x}{x} = 23 x$
$\frac{87 x}{x}$ is equivalent to $\frac{x}{x} \times 87$ , which simplifies to $1 \times 87$ (or just $87$ ).
Thus, the equation becomes: $87 = 23 x$
To find x, divide both sides by 23: $\frac{87}{23} = \frac{23 x}{23}$
Which gives, after simplification: $3.7826086956522 = x$ (or $x = 3.7826086956522$ )

So, if the dividend is 87 and the quotient is 23, the divisor is 3.7826086956522.