If the remainder is 0 and 25 is filled with 25, then the dividend of 10*5=50 is equal to 25+50=75. Quotient = 1 1.

The second one also starts from the bottom.

As can be seen from the above 9, the divisor is a factor of 9, the dividend is 3 or 9 or 1, and the remainder is 2. At the same time, 1 and 9+2 =1are two digits, so it is not enough to fill in only one box, so the divisor is 3, and the rest can be filled in.