Multiply the divisor by 10 to make it a single digit. If the divisor is 23, multiply 23 by 10 to get 230. Multiply the dividend by 10 to make it a two-digit number. If the dividend is 567,567 times 10, you get 5670. Divide the dividend by the divisor. For example, if 5670 is divided by 230, the result is 24 remainder 140.

Multiply the dividend by 100 and then subtract the remainder calculated in the previous step. Multiply 567 by 100 to get 56700, and then subtract 140 from 56700 to get the final result of 56560.

If the last few digits of the dividend and divisor are all zero, there is no need to multiply by 10 and divide by 10. For example, if the divisor is 230 and the dividend is 560, you can directly divide 560 by 230, and the result is 2 remainder 140. Then multiply the dividend by 100 and subtract the remainder to get the final result 294.

If the last digit of the divisor is 5, you can multiply 2 by 80. For example, if the divisor is 35, you can multiply it by 2 and add 80 to get 380. Then divide the dividend by 380 to get 1 and 220, and then subtract the remainder from the dividend to get the final result 19.

If the last digit of the dividend is 5, you can add 1 to it to become 6, or subtract 1 to become 4. For example, if the dividend is 635, you can add 1 to it to become 636, or subtract 1 to become 634. Then divide the adjusted dividend by the divisor, and the result is the integer part plus half of the decimal part.

636 divided by 35 results in 18 and 18, and 634 divided by 35 results in 18 and -20, so the final result is the integer part plus half of the decimal part. That is (18+1/2 =18.5).

Application of division:

1. In the commercial and financial fields, division is used to calculate the unit price, market share and interest rate of an object. For example, if we want to know the unit price of a commodity, we can divide the total price by the quantity.

2. In the field of science and engineering, division is used to calculate physical quantities such as speed, acceleration and resistance. For example, if an object moves a certain distance in a certain time, we can divide the distance by time to calculate its speed.

3. In computer programming, division is used to deal with various data types. For example, programmers can use division to calculate percentages, scale data, and perform other mathematical operations.