950825 ÷ 81 
The aim is to understand the frequency of 81 in 950825.

Advancing to step 1:
9 divided by 81 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 81

Step 2:
If we divide 95 by 81, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 81 from 95 leaves us with 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 81

Let's proceed to step 3:
If we divide 140 by 81, we get 1 and a remainder of 59.
The next digit of our result is 1. 
Result so far: 11.0
If we take 81 away from 140, we end up with 59.
Bring next digit (8) of the dividend behind the 59 and repeat the process: 598 / 81

Moving on to step 4:
When dividing 598 by 81, we get 7 with a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
The remainder is 31 after subtracting 567 from 598.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 81

Let's proceed to step 5:
312 divided by 81 is 3 with a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 1173.0
Subtract 243 from 312 to get 69.
Bring next digit (5) of the dividend behind the 69 and repeat the process: 695 / 81

Let's proceed to step 6:
81 can be fit into 695 8 times, resulting in a remainder of 47.
Record the quotient 8 as the next digit in the result. 
Result so far: 11738.0
Subtracting 648 from 695 leaves us with 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 7:
The number 81 fits into 470 5 times, leaving a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 11738.5
The remainder is 65 after subtracting 405 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 8:
If we divide 650 by 81, we get 8 and a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 11738.58
The remainder is 2 after subtracting 648 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 9:
When dividing 20 by 81, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 11738.58
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
If we divide 200 by 81, we get 2 and a remainder of 38.
The next digit of our result is 2. 
Result so far: 11738.5802
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.

On to step 11:
380 divided by 81 is 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 11738.58024
If we take 324 away from 380, we end up with 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.
Write down 6 as next digit of the result. 
Result so far: 11738.580246
Subtract 486 from 560 to 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:
81 goes into 740 9 times with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 11738.5802469
Subtracting 729 from 740 leaves us 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:
81 goes into 110 1 times with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 11738.58024691
If we subtract 81 from 110, we 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.

After the division, we end up with 11738.58024691 and a remainder of 2.9e-08.