Formula 1, divisor is the division of single digits: integer division from high order. One by one. One is not enough to see two, except which business is which. The remainder is less than the divisor, which is not enough for quotient one zero. Formula 2, divisor is the division rule of two digits: integer division starts from the high bit. Divide by two. Look at two. Two is not enough to see three, except which business is which. The remainder is less than the divisor, which is not enough for quotient one zero. Formula 3, multi-digit division rule: integer division starts from the high bit. Divide by a few and see how many there are. This is not enough to see the next one, except which one is for business. The remainder is less than the divisor, which is not enough for quotient one zero.

1, the definition of division:

Given the product of two factors and a non-zero factor, the operation of finding another factor is called division.

2, the division of labor operation:

Dividend divisor = quotient, for example, 8÷2=4.

Dividend quotient = divisor, for example: 8÷2=4_8÷4=2.

Quotient * Divider = Divider, for example: 4*2=8.

3. Business nature of the department:

If the divisor is enlarged by n times, the quotient will also be enlarged by n times under the condition that the divisor is unchanged.

When the divisor is enlarged by n times, the dividend remains unchanged and the quotient decreases by n times.

The nature of division: continuous division by two divisors is equal to division by the product of these two divisors. Sometimes simple operations can be performed according to the nature of the division.

4. Matters needing attention in division: It is stipulated in mathematics that "0 cannot be divided".