What is x when 58 divided by x equals 86?

To find the answer, just divide the dividend by the quotient: 58 ÷ 86 = 0.67441860465116

To prove this, let's compute 58 divided by 0.67441860465116: $\frac{58}{0.67441860465116} = 86$

How does it work?

Asking what the value of x could be when 58 divided by x gives a result of 86, is equivalent to solving the following equation:

$\frac{58}{x} = 86$

Multiply both sides by x: $\frac{58 x}{x} = 86 x$
$\frac{58 x}{x}$ is equivalent to $\frac{x}{x} \times 58$ , which simplifies to $1 \times 58$ (or just $58$ ).
Thus, the equation becomes: $58 = 86 x$
To find x, divide both sides by 86: $\frac{58}{86} = \frac{86 x}{86}$
Which gives, after simplification: $0.67441860465116 = x$ (or $x = 0.67441860465116$ )

So, if the dividend is 58 and the quotient is 86, the divisor is 0.67441860465116.