To convert $\frac{4}{7}$ into a decimal, divide 4 by 7:

$4 \div 7 = 0.571428571428\ldots$

The result is a repeating decimal:

$\frac{4}{7} \approx 0.571428 \, (repeating)$

This can be written as $0.\overline{571428}$.

Would you like further explanation on repeating decimals or any other details?

Here are 5 related questions:

1. How do you convert any fraction into a decimal?
2. What are repeating decimals and how are they represented?
3. How can you convert repeating decimals back into fractions?
4. What is the decimal form of $\frac{7}{4}$?
5. How do you round repeating decimals to a specific number of decimal places?

Tip: To express a repeating decimal, you can use a bar notation over the repeating digits (e.g., $0.\overline{571428}$).