1. When calculating the division vertically, start from the most significant bit of the dividend. If it can't be divided, divide it by combining the highest bit with the next bit until the dividend can be divided.
2. Calculation process of vertical division. For example, if 42 is divided by 7, 42 will be divided by the first ten digits 4. If 4 is not divisible by 7, then use the highest bit and the next bit to synthesize a number to be divisible until the dividend can be divisible; If 4 can't be divided by 7 in the division of 7, combine 4 and 2 into a number. If 42 is divided by 7, the quotient is 6.
3. When calculating the division vertically, start the division from the highest bit, and align the digits in the process of column verticality.
4. Take the vertical form of 75 divided by 5 columns as an example. Divide the highest digit of the dividend, that is, 7 of the ten digits, by 5, and the quotient is 1. The remainder is 2, and the quotient of dividing by 5 is 5, so the final result of vertical form is 15.
note:
Divide from the top of the dividend first. How many factors are there? Look at the top of the dividend. If it's not enough, watch another one. Write the quotient on the number except the dividend. If the divisor is not enough, put the quotient on this number. The remainder to be divided must be less than the divisor, and the bit dividend is placed in the right bit of the remainder.
When the dividend is not 0 (for example, 3÷0), because "any number multiplied by 0 is equal to 0, but it cannot be equal to a number that is not 0 (for example, 3)", the quotient of the division formula does not exist at this time-that is, 0 times of any number cannot be non-zero; When the dividend is 0, that is, the division formula is 0÷0, because "any number multiplied by 0 equals 0", the quotient can be any number-that is, 0 times of any number equals 0.