According to 105, the above three numbers are also 105, and it can also be determined that the last digit of the dividend should be 5; Because 8-7= 1, 7 should be below 8, and only 0-0=0, so 7 is followed by 0. According to this 0, we can judge that the number in the middle of the dividend is also 0, so we can determine that the dividend is 80.5.

According to 105, the multiplication of divisor most significant bit 3 is close to 10, and three plus three get nine, so the unit of quotient should be 3, and nine needs a carry 1 to get 10, so the multiplication of three plus several in the unit of quotient can get15,35/. The second line below the division formula has been determined as 7 and 0. Divide 70 by 35 to get 2, and you can determine that the highest bit of the quotient is 2. That is 80.5/3.5=23.

Write out the solution ideas in this way, hoping to help you understand and wish you a happy study!