On the significance of each step in the vertical form of fractional division.

The meaning of fractional division is exactly the same as integer division, which is "the operation of finding another factor by knowing the product of two numbers and one factor"; So the first step of fractional division is to turn the divisor into an integer, and then operate according to the rules of integer division, paying attention to the decimal point.

A divisor is the division of a single digit. Division in which the divisor is a single digit is calculated according to the operational nature of division.

A divider is the division of multiple numbers. Division with divisor of multiple digits is also calculated according to the operational nature of division. ?

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For example, 42 divided by 7.

On a scale of 4 [from high to low]. When calculating the division vertically, start from most significant bit, such as: 42 from most significant bit 4; If it is not divisible, such as: 4 is not divisible by 7, then use the highest bit and the next bit to synthesize a number to be divisible until it can be divisible by the divisor; For example, if 4 can't be divided by 7 in 42, then 4 and 2 are combined into a number. If 42 is divided by 7, the quotient is 6.