We look at the division of 72749172 by 879 
The aim is to understand the frequency of 879 in 72749172.

Let's proceed to step 1:
If we divide 7 by 879, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 879

On to step 2:
When dividing 72 by 879, we get 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Fetch the next digit (7) from the dividend, attach it to 72 and continue: 727 / 879

Moving on to step 3:
When dividing 727 by 879, we get 0 with a remainder of 727.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 727, we get 727.
Take the next digit (4) from the dividend and append it to 727, then repeat: 7274 / 879

Let's proceed to step 4:
879 goes into 7274 8 times with a remainder of 242.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 7032 from 7274 and we're left with 242.
Take the next digit (9) from the dividend and append it to 242, then repeat: 2429 / 879

Moving on to step 5:
2429 divided by 879 is 2 with a remainder of 671.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
Subtracting 1758 from 2429 leaves us with 671.
Take the next digit (1) from the dividend and append it to 671, then repeat: 6711 / 879

Going ahead to step 6:
If we divide 6711 by 879, we get 7 and a remainder of 558.
Use 7 as the next digit of our solution. 
Result so far: 827.0
Subtracting 6153 from 6711 leaves us with 558.
Include the next digit (7) from the dividend after 558, then repeat: 5587 / 879

Going ahead to step 7:
879 goes into 5587 6 times with a remainder of 313.
Write down 6 as next digit of the result. 
Result so far: 8276.0
Subtract 5274 from 5587 to get 313.
Append the next digit (2) from the dividend to 313 and continue with: 3132 / 879

Advancing to step 8:
879 can be fit into 3132 3 times, resulting in a remainder of 495.
Use 3 as the next digit of our solution. 
Result so far: 82763.0
Subtracting 2637 from 3132 leaves us with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Let's proceed to step 9:
879 goes into 4950 5 times with a remainder of 555.
The number 5 becomes the next digit in our result. 
Result so far: 82763.5
Subtracting 4395 from 4950 leaves us with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

On to step 10:
879 can be fit into 5550 6 times, resulting in a remainder of 276.
Put 6 as the next digit of the answer. 
Result so far: 82763.56
Deduct 5274 from 5550 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 11:
The number 879 fits into 2760 3 times, leaving a remainder of 123.
Put 3 as the next digit of the answer. 
Result so far: 82763.563
The remainder is 123 after subtracting 2637 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

On to step 12:
The number 879 fits into 1230 1 times, leaving a remainder of 351.
Use 1 as the next digit of our solution. 
Result so far: 82763.5631
The remainder is 351 after subtracting 879 from 1230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Advancing to step 13:
The number 879 fits into 3510 3 times, leaving a remainder of 873.
The next digit of our result is 3. 
Result so far: 82763.56313
Subtracting 2637 from 3510 leaves us with 873.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8730, and continue the process.

Advancing to step 14:
879 goes into 8730 9 times with a remainder of 819.
Write down 9 as next digit of the result. 
Result so far: 82763.563139
If we take 7911 away from 8730, we end up with 819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8190, and continue the process.

Advancing to step 15:
8190 divided by 879 is 9 with a remainder of 279.
The next digit of our result is 9. 
Result so far: 82763.5631399
If we take 7911 away from 8190, we end up with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

The final result is 82763.5631399 with a remainder of 2.79e-06.