We divide 67029367 by 81
The aim is to understand the frequency of 81 in 67029367.

Step 1:
When dividing 6 by 81, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 81

Going ahead to step 2:
If we divide 67 by 81, we get 0 and a remainder of 67.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Take the next digit (0) from the dividend and append it to 67, then repeat: 670 / 81

Going ahead to step 3:
When dividing 670 by 81, we get 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 648 from 670 leaves us with 22.
Append the next digit (2) from the dividend to 22 and continue with: 222 / 81

Let's proceed to step 4:
The number 81 fits into 222 2 times, leaving a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 82.0
Subtracting 162 from 222 leaves us with 60.
Fetch the next digit (9) from the dividend, attach it to 60 and continue: 609 / 81

Moving on to step 5:
When dividing 609 by 81, we get 7 with a remainder of 42.
Write down 7 as next digit of the result. 
Result so far: 827.0
Subtract 567 from 609 to get 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 81

Let's proceed to step 6:
If we divide 423 by 81, we get 5 and a remainder of 18.
Use 5 as the next digit of our solution. 
Result so far: 8275.0
Subtracting 405 from 423 leaves us with 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 81

On to step 7:
81 can be fit into 186 2 times, resulting in a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 82752.0
If we take 162 away from 186, we end up with 24.
Append the next digit (7) from the dividend to 24 and continue with: 247 / 81

Advancing to step 8:
If we divide 247 by 81, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 827523.0
The remainder is 4 after subtracting 243 from 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
81 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 827523.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
If we divide 400 by 81, we get 4 and a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 827523.04
Subtracting 324 from 400 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
When dividing 760 by 81, we get 9 with a remainder of 31.
The next digit of our result is 9. 
Result so far: 827523.049
If we take 729 away from 760, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
The number 81 fits into 310 3 times, leaving a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 827523.0493
The remainder is 67 after subtracting 243 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 13:
81 goes into 670 8 times with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 827523.04938
Subtract 648 from 670 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 14:
The number 81 fits into 220 2 times, leaving a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 827523.049382
The remainder is 58 after subtracting 162 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 15:
81 can be fit into 580 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 827523.0493827
Subtract 567 from 580 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 16:
81 can be fit into 130 1 times, resulting in a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 827523.04938271
Deduct 81 from 130 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

After the division, we end up with 827523.04938271 and a remainder of 4.9e-08.