Let's divide 75425906 by 81
We want to figure out the number of times 75425906 can be divided by 81.

Going ahead to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 81

Let's proceed to step 2:
If we divide 75 by 81, we get 0 and a remainder of 75.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Take the next digit (4) from the dividend and append it to 75, then repeat: 754 / 81

Moving on to step 3:
81 goes into 754 9 times with a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 729 from 754 to get 25.
Take the next digit (2) from the dividend and append it to 25, then repeat: 252 / 81

Going ahead to step 4:
If we divide 252 by 81, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 93.0
If we subtract 243 from 252, we get 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 81

Step 5:
The number 81 fits into 95 1 times, leaving a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 931.0
If we subtract 81 from 95, we get 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 81

Going ahead to step 6:
If we divide 149 by 81, we get 1 and a remainder of 68.
The number 1 becomes the next digit in our result. 
Result so far: 9311.0
Deduct 81 from 149 and we're left with 68.
Bring next digit (0) of the dividend behind the 68 and repeat the process: 680 / 81

Let's proceed to step 7:
81 goes into 680 8 times with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 93118.0
Subtract 648 from 680 to get 32.
Append the next digit (6) from the dividend to 32 and continue with: 326 / 81

Going ahead to step 8:
When dividing 326 by 81, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 931184.0
Subtracting 324 from 326 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 9:
If we divide 20 by 81, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 931184.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 931184.02
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
81 can be fit into 380 4 times, resulting in a remainder of 56.
The next digit of our result is 4. 
Result so far: 931184.024
Subtract 324 from 380 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 12:
When dividing 560 by 81, we get 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 931184.0246
If we subtract 486 from 560, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 13:
740 divided by 81 is 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 931184.02469
If we take 729 away from 740, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 14:
The number 81 fits into 110 1 times, leaving a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 931184.024691
Subtract 81 from 110 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 15:
81 goes into 290 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 931184.0246913
If we subtract 243 from 290, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 16:
81 can be fit into 470 5 times, resulting in a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 931184.02469135
Deduct 405 from 470 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 931184.02469135 and a remainder of 6.5e-08.