747169 ÷ 81 
The aim is to understand the frequency of 81 in 747169.

Moving on to step 1:
81 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 81

Moving on to step 2:
The number 81 fits into 74 0 times, leaving a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 74 leaves us with 74.
Grab the next digit (7) from the dividend, add it to 74, then carry on: 747 / 81

Let's proceed to step 3:
81 can be fit into 747 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 729 from 747 and we're left with 18.
Bring next digit (1) of the dividend behind the 18 and repeat the process: 181 / 81

Let's proceed to step 4:
If we divide 181 by 81, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 92.0
If we subtract 162 from 181, we get 19.
Append the next digit (6) from the dividend to 19 and continue with: 196 / 81

Step 5:
81 goes into 196 2 times with a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 922.0
If we subtract 162 from 196, we get 34.
Fetch the next digit (9) from the dividend, attach it to 34 and continue: 349 / 81

Moving on to step 6:
The number 81 fits into 349 4 times, leaving a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 9224.0
Subtract 324 from 349 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 7:
81 goes into 250 3 times with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 9224.3
Deduct 243 from 250 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
The number 81 fits into 70 0 times, leaving a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 9224.3
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 9:
700 divided by 81 is 8 with a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 9224.308
Subtract 648 from 700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 10:
520 divided by 81 is 6 with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 9224.3086
If we take 486 away from 520, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
When dividing 340 by 81, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 9224.30864
Subtracting 324 from 340 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
81 goes into 160 1 times with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 9224.308641
If we take 81 away from 160, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 13:
The number 81 fits into 790 9 times, leaving a remainder of 61.
The next digit of our result is 9. 
Result so far: 9224.3086419
Subtracting 729 from 790 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 14:
The number 81 fits into 610 7 times, leaving a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 9224.30864197
Subtracting 567 from 610 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 9224.30864197 with a remaining 4.3e-08.