Use long division to convert 415 to a decimal.

To convert 415 to a decimal using long division, we divide 415 by 1:

415 ÷ 1 = 415

Therefore, 415 as a decimal is simply 415.

To convert 415 to a decimal using long division, follow these steps:

1. Begin by writing 415 as the numerator (the number being divided).
2. Choose a divisor. We will start with 1 for simplicity.
3. Divide 415 by the divisor. In this case, 415 ÷ 1 = 415.
4. Write the quotient (the result of the division) above the division symbol.
5. Subtract the product of the divisor and quotient from the numerator. In this case, 415 - (1 x 415) = 0.
6. If the remainder is zero, the division is complete. The decimal form of 415 is the quotient: 415.0.

Therefore, the decimal form of 415 is 415.0.