Answer: If you want to do that five-digit division, of course, there is a way to know the quotient quickly. First of all, we should memorize the formulas of addition, subtraction, multiplication and division and use them flexibly. Secondly, it is necessary to estimate that the product of quotient and divisor is not greater than the number corresponding to divisor, and use special rules to shorthand the data of product and quotient data. Furthermore, mental memory, memory and spatial operation ability should also be practiced well. As long as these three points are brought into full play, the multiplication and division method will be very fast.

For example:

10000÷2=5000

10000÷4=2500

10000÷8= 1250

10000÷ 16=625

10000÷32=3 12.5

10000÷64= 156.25

……

Summarizing the above simple rules, you can arbitrarily transform the divisor and the multiple of the divisor for reciprocal operation, and you will see the answer when you are skilled.