Let's divide 63696397 by 873
The aim is to understand the frequency of 873 in 63696397.

On to step 1:
The number 873 fits into 6 0 times, leaving 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.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 873

On to step 2:
63 divided by 873 is 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Include the next digit (6) from the dividend after 63, then repeat: 636 / 873

Going ahead to step 3:
636 divided by 873 is 0 with a remainder of 636.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 636 leaves us with 636.
Grab the next digit (9) from the dividend, add it to 636, then carry on: 6369 / 873

Advancing to step 4:
When dividing 6369 by 873, we get 7 with a remainder of 258.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 6111 from 6369, we get 258.
Take the next digit (6) from the dividend and append it to 258, then repeat: 2586 / 873

Step 5:
The number 873 fits into 2586 2 times, leaving a remainder of 840.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Subtracting 1746 from 2586 leaves us with 840.
Append the next digit (3) from the dividend to 840 and continue with: 8403 / 873

Advancing to step 6:
873 goes into 8403 9 times with a remainder of 546.
The next digit of our result is 9. 
Result so far: 729.0
If we subtract 7857 from 8403, we get 546.
Fetch the next digit (9) from the dividend, attach it to 546 and continue: 5469 / 873

Advancing to step 7:
873 goes into 5469 6 times with a remainder of 231.
The number 6 becomes the next digit in our result. 
Result so far: 7296.0
Subtract 5238 from 5469 to get 231.
Include the next digit (7) from the dividend after 231, then repeat: 2317 / 873

Let's proceed to step 8:
If we divide 2317 by 873, we get 2 and a remainder of 571.
The next digit of our result is 2. 
Result so far: 72962.0
Subtracting 1746 from 2317 leaves us with 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Step 9:
873 goes into 5710 6 times with a remainder of 472.
Record the quotient 6 as the next digit in the result. 
Result so far: 72962.6
If we take 5238 away from 5710, we end up with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 10:
4720 divided by 873 is 5 with a remainder of 355.
Record the quotient 5 as the next digit in the result. 
Result so far: 72962.65
If we subtract 4365 from 4720, we get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Advancing to step 11:
3550 divided by 873 is 4 with a remainder of 58.
Write down 4 as next digit of the result. 
Result so far: 72962.654
Subtract 3492 from 3550 to get 58.
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 12:
The number 873 fits into 580 0 times, leaving a remainder of 580.
Put 0 as the next digit of the answer. 
Result so far: 72962.654
If we take 0 away from 580, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 13:
873 goes into 5800 6 times with a remainder of 562.
The number 6 becomes the next digit in our result. 
Result so far: 72962.65406
Deduct 5238 from 5800 and we're left with 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Step 14:
When dividing 5620 by 873, we get 6 with a remainder of 382.
Put 6 as the next digit of the answer. 
Result so far: 72962.654066
The remainder is 382 after subtracting 5238 from 5620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

The final outcome is 72962.654066, with a leftover of 3.82e-05.