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What does a reader mean?
The process of division operation.

Method is one of four operations. Given the product of two factors and a non-zero factor, the operation of finding another factor is called division. Division of two numbers is also called the ratio of two numbers. If ab=c(b≠0), the operation of finding another factor A by multiplying the product C and the factor B is division, which is marked as c÷b and pronounced as C divided by B (or B divided by C). Among them, c is called dividend, b is called divisor, and the result of a operation is called quotient.

The related formulas and operational properties of division are as follows:

1, divisor = quotient.

2. Divider × quotient = dividend.

3, divisor = (dividend-remainder) quotient.

4, quotient = (dividend-remainder) ÷ divisor.

The dividend is expanded or reduced by n times, and the quotient is correspondingly expanded or reduced by n times under the condition that the divisor is unchanged. The divisor is expanded or reduced by n times, the dividend is unchanged, and the quotient is correspondingly reduced or expanded by n times. Dividing by two divisors in succession is equal to dividing by the product of these two divisors.