Solution: Divide every bit of the dividend from the high position, keep the quotient obtained by each calculation, and add the next bit to the remainder for operation. After all the digits of the dividend are operated in this order, the obtained quotients are combined in order, and the remainder is the result of the last operation.

Problem solving process:

Step 1: 9÷3=3, and the remainder is 0.

Step 2: 3÷3= 1 remainder is 0.

According to the above calculation steps, the combined result is 3 1.

Checking calculation: 3×3 1=93

The extended data first aligns the last bits of the two multipliers, then uses the second multipliers respectively, multiplies each bit by a multiplier in turn from the last bit, and finally accumulates the calculation results into a product. If the multiplier is decimal, the corresponding multiple can be expanded first, and then the product can be reduced by the corresponding multiple;

Problem solving process:

Step 1: 1×3=3

Step 2: 3×3=90

According to the above calculation results, the total is 93.

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