We look at the division of 72817136 by 857 
The aim is to understand the frequency of 857 in 72817136.

Let's proceed to step 1:
7 divided by 857 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 857

Going ahead to step 2:
72 divided by 857 is 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Bring next digit (8) of the dividend behind the 72 and repeat the process: 728 / 857

Step 3:
The number 857 fits into 728 0 times, leaving a remainder of 728.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 728 to get 728.
Take the next digit (1) from the dividend and append it to 728, then repeat: 7281 / 857

Let's proceed to step 4:
The number 857 fits into 7281 8 times, leaving a remainder of 425.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 6856 from 7281, we get 425.
Grab the next digit (7) from the dividend, add it to 425, then carry on: 4257 / 857

Moving on to step 5:
If we divide 4257 by 857, we get 4 and a remainder of 829.
Use 4 as the next digit of our solution. 
Result so far: 84.0
The remainder is 829 after subtracting 3428 from 4257.
Append the next digit (1) from the dividend to 829 and continue with: 8291 / 857

Advancing to step 6:
8291 divided by 857 is 9 with a remainder of 578.
The number 9 becomes the next digit in our result. 
Result so far: 849.0
If we take 7713 away from 8291, we end up with 578.
Grab the next digit (3) from the dividend, add it to 578, then carry on: 5783 / 857

Going ahead to step 7:
If we divide 5783 by 857, we get 6 and a remainder of 641.
The next digit of our result is 6. 
Result so far: 8496.0
If we take 5142 away from 5783, we end up with 641.
Include the next digit (6) from the dividend after 641, then repeat: 6416 / 857

Advancing to step 8:
857 can be fit into 6416 7 times, resulting in a remainder of 417.
The number 7 becomes the next digit in our result. 
Result so far: 84967.0
Subtracting 5999 from 6416 leaves us with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Step 9:
The number 857 fits into 4170 4 times, leaving a remainder of 742.
The number 4 becomes the next digit in our result. 
Result so far: 84967.4
Subtract 3428 from 4170 to get 742.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7420, and continue the process.

Moving on to step 10:
7420 divided by 857 is 8 with a remainder of 564.
Put 8 as the next digit of the answer. 
Result so far: 84967.48
If we subtract 6856 from 7420, we get 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Let's proceed to step 11:
When dividing 5640 by 857, we get 6 with a remainder of 498.
Put 6 as the next digit of the answer. 
Result so far: 84967.486
Subtracting 5142 from 5640 leaves us with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Step 12:
857 goes into 4980 5 times with a remainder of 695.
Write down 5 as next digit of the result. 
Result so far: 84967.4865
Deduct 4285 from 4980 and we're left with 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

On to step 13:
857 can be fit into 6950 8 times, resulting in a remainder of 94.
The next digit of our result is 8. 
Result so far: 84967.48658
The remainder is 94 after subtracting 6856 from 6950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 14:
940 divided by 857 is 1 with a remainder of 83.
Write down 1 as next digit of the result. 
Result so far: 84967.486581
The remainder is 83 after subtracting 857 from 940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 15:
857 goes into 830 0 times with a remainder of 830.
Use 0 as the next digit of our solution. 
Result so far: 84967.486581
Subtracting 0 from 830 leaves us with 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Step 16:
If we divide 8300 by 857, we get 9 and a remainder of 587.
Use 9 as the next digit of our solution. 
Result so far: 84967.48658109
Subtracting 7713 from 8300 leaves us with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

The final result is 84967.48658109 with a remainder of 5.87e-07.