81720862 ÷ 234 
The aim is to understand the frequency of 234 in 81720862.

Advancing to step 1:
When dividing 8 by 234, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 234

Going ahead to step 2:
When dividing 81 by 234, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (7) from the dividend, add it to 81, then carry on: 817 / 234

Advancing to step 3:
The number 234 fits into 817 3 times, leaving a remainder of 115.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 702 from 817 leaves us with 115.
Grab the next digit (2) from the dividend, add it to 115, then carry on: 1152 / 234

Advancing to step 4:
1152 divided by 234 is 4 with a remainder of 216.
The next digit of our result is 4. 
Result so far: 34.0
If we subtract 936 from 1152, we get 216.
Append the next digit (0) from the dividend to 216 and continue with: 2160 / 234

Step 5:
The number 234 fits into 2160 9 times, leaving a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 349.0
Deduct 2106 from 2160 and we're left with 54.
Fetch the next digit (8) from the dividend, attach it to 54 and continue: 548 / 234

Step 6:
548 divided by 234 is 2 with a remainder of 80.
Use 2 as the next digit of our solution. 
Result so far: 3492.0
Deduct 468 from 548 and we're left with 80.
Grab the next digit (6) from the dividend, add it to 80, then carry on: 806 / 234

On to step 7:
234 can be fit into 806 3 times, resulting in a remainder of 104.
Put 3 as the next digit of the answer. 
Result so far: 34923.0
If we subtract 702 from 806, we get 104.
Take the next digit (2) from the dividend and append it to 104, then repeat: 1042 / 234

On to step 8:
234 goes into 1042 4 times with a remainder of 106.
Put 4 as the next digit of the answer. 
Result so far: 349234.0
The remainder is 106 after subtracting 936 from 1042.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 9:
The number 234 fits into 1060 4 times, leaving a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 349234.4
If we subtract 936 from 1060, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 10:
When dividing 1240 by 234, we get 5 with a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 349234.45
Subtract 1170 from 1240 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 11:
The number 234 fits into 700 2 times, leaving a remainder of 232.
The next digit of our result is 2. 
Result so far: 349234.452
Subtracting 468 from 700 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 12:
When dividing 2320 by 234, we get 9 with a remainder of 214.
The number 9 becomes the next digit in our result. 
Result so far: 349234.4529
If we take 2106 away from 2320, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Advancing to step 13:
When dividing 2140 by 234, we get 9 with a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 349234.45299
Subtracting 2106 from 2140 leaves us 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.

The final result is 349234.45299 with a remainder of 3.4e-05.