598094 ÷ 81 
The aim is to understand the frequency of 81 in 598094.

Going ahead to step 1:
The number 81 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 81

Step 2:
81 can be fit into 59 0 times, resulting in a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Fetch the next digit (8) from the dividend, attach it to 59 and continue: 598 / 81

Moving on to step 3:
When dividing 598 by 81, we get 7 with a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 567 from 598 leaves us with 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 81

Moving on to step 4:
81 goes into 310 3 times with a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 73.0
If we take 243 away from 310, we end up with 67.
Grab the next digit (9) from the dividend, add it to 67, then carry on: 679 / 81

Let's proceed to step 5:
81 goes into 679 8 times with a remainder of 31.
Use 8 as the next digit of our solution. 
Result so far: 738.0
If we subtract 648 from 679, we get 31.
Grab the next digit (4) from the dividend, add it to 31, then carry on: 314 / 81

Moving on to step 6:
81 can be fit into 314 3 times, resulting in a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 7383.0
If we take 243 away from 314, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 7:
81 goes into 710 8 times with a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 7383.8
If we take 648 away from 710, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 8:
When dividing 620 by 81, we get 7 with a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 7383.87
Subtracting 567 from 620 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 9:
81 can be fit into 530 6 times, resulting in a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 7383.876
If we take 486 away from 530, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
440 divided by 81 is 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 7383.8765
The remainder is 35 after subtracting 405 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 11:
The number 81 fits into 350 4 times, leaving a remainder of 26.
The next digit of our result is 4. 
Result so far: 7383.87654
If we take 324 away from 350, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 12:
If we divide 260 by 81, we get 3 and a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 7383.876543
The remainder is 17 after subtracting 243 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 13:
When dividing 170 by 81, we get 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 7383.8765432
Subtracting 162 from 170 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
The number 81 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 7383.8765432
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 7383.8765432 with a remaining 8e-08.