81436568 ÷ 873 
The aim is to understand the frequency of 873 in 81436568.

Advancing to step 1:
873 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
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 / 873

Step 2:
873 can be fit into 81 0 times, resulting in a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (4) from the dividend, attach it to 81 and continue: 814 / 873

Advancing to step 3:
The number 873 fits into 814 0 times, leaving a remainder of 814.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 814 to get 814.
Fetch the next digit (3) from the dividend, attach it to 814 and continue: 8143 / 873

Moving on to step 4:
The number 873 fits into 8143 9 times, leaving a remainder of 286.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 7857 from 8143 leaves us with 286.
Grab the next digit (6) from the dividend, add it to 286, then carry on: 2866 / 873

Advancing to step 5:
When dividing 2866 by 873, we get 3 with a remainder of 247.
The next digit of our result is 3. 
Result so far: 93.0
If we subtract 2619 from 2866, we get 247.
Fetch the next digit (5) from the dividend, attach it to 247 and continue: 2475 / 873

Let's proceed to step 6:
The number 873 fits into 2475 2 times, leaving a remainder of 729.
The next digit of our result is 2. 
Result so far: 932.0
Subtracting 1746 from 2475 leaves us with 729.
Fetch the next digit (6) from the dividend, attach it to 729 and continue: 7296 / 873

On to step 7:
873 can be fit into 7296 8 times, resulting in a remainder of 312.
The next digit of our result is 8. 
Result so far: 9328.0
If we subtract 6984 from 7296, we get 312.
Include the next digit (8) from the dividend after 312, then repeat: 3128 / 873

On to step 8:
When dividing 3128 by 873, we get 3 with a remainder of 509.
The next digit of our result is 3. 
Result so far: 93283.0
Subtract 2619 from 3128 to get 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Going ahead to step 9:
If we divide 5090 by 873, we get 5 and a remainder of 725.
Write down 5 as next digit of the result. 
Result so far: 93283.5
Subtract 4365 from 5090 to get 725.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7250, and continue the process.

Step 10:
The number 873 fits into 7250 8 times, leaving a remainder of 266.
The next digit of our result is 8. 
Result so far: 93283.58
Subtracting 6984 from 7250 leaves us with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

On to step 11:
2660 divided by 873 is 3 with a remainder of 41.
The next digit of our result is 3. 
Result so far: 93283.583
Subtracting 2619 from 2660 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 12:
873 goes into 410 0 times with a remainder of 410.
Record the quotient 0 as the next digit in the result. 
Result so far: 93283.583
Deduct 0 from 410 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 13:
873 goes into 4100 4 times with a remainder of 608.
Use 4 as the next digit of our solution. 
Result so far: 93283.58304
If we take 3492 away from 4100, we end up with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 14:
If we divide 6080 by 873, we get 6 and a remainder of 842.
Record the quotient 6 as the next digit in the result. 
Result so far: 93283.583046
If we take 5238 away from 6080, we end up with 842.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8420, and continue the process.

Let's proceed to step 15:
When dividing 8420 by 873, we get 9 with a remainder of 563.
The number 9 becomes the next digit in our result. 
Result so far: 93283.5830469
If we subtract 7857 from 8420, we get 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Step 16:
5630 divided by 873 is 6 with a remainder of 392.
The number 6 becomes the next digit in our result. 
Result so far: 93283.58304696
Subtract 5238 from 5630 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

The final result is 93283.58304696 with a remainder of 3.92e-07.