How to write the vertical calculation of 408 divided by 4?

Vertical calculation of 408 divided by 4:

Extended data:

Divider is the law of fractional division of integers;

1) According to the law of integer division, the decimal point of quotient should be aligned with the decimal point of dividend;

2) If there is a remainder at the end of the dividend, fill in zeros after the remainder and continue the division.

The law of fractional division in which divisor is decimal;

1) First look at how many decimal places the divisor has, and then move the decimal point of the divisor to the right to make up for the lack of digits;

2) Then divide by the fractional division of integer divisor.