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What is the vertical course of division in the second volume of the third grade?
Step 1: Write 5 10÷65 into the vertical score. As shown in the figure:

Step 2: Look at the highest digit of dividend first. Since the dividend is 2 digits, let's look at the 2 digits with the highest dividend, that is, 5 1. But because 5 1 < 65, we need to look at the next digit of the dividend, which is 5 10. As shown in the figure:

Step 3: Calculate the maximum quotient of 5 10÷65. The result is 7. Where the divisor is divided, the quotient is written on it. As shown in the figure:

Step 4: Calculate 7×65, and the result is 455. Write vertically. As shown in the figure:

Step 5: Calculate the remainder, 5 10-455=55. Write it in vertical form and complete this calculation. The result is 5 10 ÷ 65 = 7.55. As shown in the figure: