Write the dividend inside a long division bracket.
Write the divisor outside the bracket.
Divide the first part of the dividend by the divisor.
Place the quotient above the division bar.
Multiply the divisor by the quotient digit.
Subtract the product from the current part of the dividend.
Bring down the next digit from the dividend.
Repeat: divide, multiply, subtract, and bring down until finished.
If the remainder is 0, the division is exact.
If there is a remainder, write it as a remainder (e.g., remainder r) or add a decimal point and continue dividing to get decimal places.