(1) is removed first according to the law of integer division.

② The decimal point of quotient should be aligned with the decimal point of dividend.

③ If there is a remainder at the end of the dividend, add 0 to the remainder and continue the division.

A fractional division in which the divisor is a decimal:

First, remove the decimal point of the divisor and make it an integer.

(2) Look at how many decimal places the divisor originally had, and move the decimal point of the dividend to the right by the same decimal place (if the decimal place is not enough, add 0).

(3) Division by divisor is an integer.

The relationship between dividend and quotient:

1, the dividend is enlarged (reduced) by n times, and the quotient is correspondingly enlarged (reduced) by n times.

2. The divisor is expanded (reduced) by n times, and the quotient is correspondingly reduced (expanded) by n times.

Algorithm of integer division:

1. Starting from the highest digit of the dividend, take out the number with the same digit as the divisor (if the number taken out is less than the divisor, take out the number with one digit more than the divisor), and divide by the divisor to get the highest digit of the quotient and the remainder (the remainder may be zero).

2. Turn the remainder into the next unit, add the number on the dividend, and then divide by the divisor (when the divisor is less than this number, the quotient is 0) to get the quotient and the remainder. This continues until all the digits on the dividend are used up to get the final quotient and remainder.