We're dividing 67507944 by 81 
The aim is to understand the frequency of 81 in 67507944.

Going ahead to step 1:
The number 81 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 81

On to step 2:
The number 81 fits into 67 0 times, leaving a remainder of 67.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Include the next digit (5) from the dividend after 67, then repeat: 675 / 81

Step 3:
81 can be fit into 675 8 times, resulting in a remainder of 27.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 648 away from 675, we end up with 27.
Bring next digit (0) of the dividend behind the 27 and repeat the process: 270 / 81

Going ahead to step 4:
270 divided by 81 is 3 with a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 83.0
If we take 243 away from 270, we end up with 27.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 81

Advancing to step 5:
277 divided by 81 is 3 with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 833.0
Deduct 243 from 277 and we're left with 34.
Take the next digit (9) from the dividend and append it to 34, then repeat: 349 / 81

Going ahead to step 6:
81 goes into 349 4 times with a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 8334.0
The remainder is 25 after subtracting 324 from 349.
Bring next digit (4) of the dividend behind the 25 and repeat the process: 254 / 81

Advancing to step 7:
81 goes into 254 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 83343.0
If we subtract 243 from 254, we get 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 81

Moving on to step 8:
114 divided by 81 is 1 with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 833431.0
Subtracting 81 from 114 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 9:
When dividing 330 by 81, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 833431.4
The remainder is 6 after subtracting 324 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
81 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 833431.4
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
81 goes into 600 7 times with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 833431.407
If we subtract 567 from 600, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 12:
If we divide 330 by 81, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 833431.4074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
81 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 833431.4074
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
The number 81 fits into 600 7 times, leaving a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 833431.407407
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 15:
330 divided by 81 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 833431.4074074
If we take 324 away from 330, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 16:
When dividing 60 by 81, we get 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 833431.4074074
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

In conclusion, the division gives 833431.4074074 with a balance of 6e-08.