What is 2000 divided by 7, expressed as a mixed number and a decimal rounded to two places?

$$20 \div 7 = 2 \text{ with a remainder of } 6$$

Write 2 above the 0 in 2000. Multiply $7 \times 2 = 14$ and subtract from 20.

$$\begin{array}{r} 2\phantom{00} \\ 7 \overline{) 2000} \\ -14\phantom{00} \\ \hline 6\phantom{00} \end{array}$$

Divide 60 by 7.

$$60 \div 7 = 8 \text{ with a remainder of } 4$$

Write 8 above the next 0. Multiply $7 \times 8 = 56$ and subtract from 60.

$$\begin{array}{r} 28\phantom{0} \\ 7 \overline{) 2000} \\ -14\phantom{00} \\ \hline 60\phantom{0} \\ -56\phantom{0} \\ \hline 4\phantom{0} \end{array}$$

Divide 40 by 7.

$$40 \div 7 = 5 \text{ with a remainder of } 5$$

Write 5 above the last 0. Multiply $7 \times 5 = 35$ and subtract from 40.

$$\begin{array}{r} 285 \\ 7 \overline{) 2000} \\ -14\phantom{00} \\ \hline 60\phantom{0} \\ -56\phantom{0} \\ \hline 40 \\ -35 \\ \hline 5 \end{array}$$

The quotient is 285 and the remainder is 5.
Therefore, $2000 \div 7$ can be expressed as a mixed number or a decimal.

$$\frac{2000}{7} = 285 \frac{5}{7}$$

As a decimal, rounded to two decimal places:

$$285 \frac{5}{7} \approx 285.71$$

The exact answer is $\boxed{285 \frac{5}{7}}$ or approximately $\boxed{285.71}$.