Division operation includes the following contents:

1. integer division operation

Decimals are divisible by integers, and divisors are divisible by fractions of integers. According to the law of integer division, the decimal point of quotient should be aligned with the decimal point of dividend. If there is a remainder at the end of the dividend, add 0 after the remainder and continue the division.

2. Decimal division operation

A divider is the division of decimals. First, the divisor and dividend are expanded by the same multiple, so that the divisor becomes an integer, and then it is calculated according to the calculation method of "Divider is a fractional division of an integer". It should be noted that the divisor decimal point should be moved first to make it an integer. The decimal point of the divisor is moved to the right by several digits, and the decimal point of the dividend is also moved to the right by several digits (the digits are not enough to make up the 0 at the end of the dividend), and then it is calculated according to the fractional division in which the divisor is an integer.

3. Fractional division operation

A fraction divisible by an integer can be divisible by the numerator of the fraction, but the quotient of the integer may not be obtained, so the fraction is usually divisible by an integer and converted into a component multiplied by the reciprocal of the integer.

This is the inverse operation of fractional multiplication, and division can also be carried out by using the multiplication and division relationship. Thus, the meaning of division is to divide the whole into several identical parts on average, and division can be done by multiplication. Generally speaking, if you divide the result of multiplication by one of the multipliers, you can get another multiplier, that is, you can realize the conversion of multiplication and division.