We divide 1253938 by 857
The aim is to understand the frequency of 857 in 1253938.

On to step 1:
857 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 857

Step 2:
If we divide 12 by 857, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 857

Step 3:
125 divided by 857 is 0 with a remainder of 125.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 125 after subtracting 0 from 125.
Include the next digit (3) from the dividend after 125, then repeat: 1253 / 857

Advancing to step 4:
The number 857 fits into 1253 1 times, leaving a remainder of 396.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 396 after subtracting 857 from 1253.
Bring next digit (9) of the dividend behind the 396 and repeat the process: 3969 / 857

On to step 5:
857 can be fit into 3969 4 times, resulting in a remainder of 541.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we take 3428 away from 3969, we end up with 541.
Append the next digit (3) from the dividend to 541 and continue with: 5413 / 857

On to step 6:
If we divide 5413 by 857, we get 6 and a remainder of 271.
Record the quotient 6 as the next digit in the result. 
Result so far: 146.0
If we subtract 5142 from 5413, we get 271.
Take the next digit (8) from the dividend and append it to 271, then repeat: 2718 / 857

On to step 7:
2718 divided by 857 is 3 with a remainder of 147.
The next digit of our result is 3. 
Result so far: 1463.0
The remainder is 147 after subtracting 2571 from 2718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Going ahead to step 8:
857 can be fit into 1470 1 times, resulting in a remainder of 613.
Put 1 as the next digit of the answer. 
Result so far: 1463.1
If we subtract 857 from 1470, we get 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Going ahead to step 9:
857 goes into 6130 7 times with a remainder of 131.
Record the quotient 7 as the next digit in the result. 
Result so far: 1463.17
If we take 5999 away from 6130, we end up with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Going ahead to step 10:
1310 divided by 857 is 1 with a remainder of 453.
The number 1 becomes the next digit in our result. 
Result so far: 1463.171
If we subtract 857 from 1310, we get 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Moving on to step 11:
857 can be fit into 4530 5 times, resulting in a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 1463.1715
If we subtract 4285 from 4530, we get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Let's proceed to step 12:
857 goes into 2450 2 times with a remainder of 736.
Write down 2 as next digit of the result. 
Result so far: 1463.17152
Subtracting 1714 from 2450 leaves us with 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

Let's proceed to step 13:
857 goes into 7360 8 times with a remainder of 504.
Write down 8 as next digit of the result. 
Result so far: 1463.171528
If we take 6856 away from 7360, we end up with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

On to step 14:
857 can be fit into 5040 5 times, resulting in a remainder of 755.
Write down 5 as next digit of the result. 
Result so far: 1463.1715285
If we subtract 4285 from 5040, we get 755.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7550, and continue the process.

Going ahead to step 15:
When dividing 7550 by 857, we get 8 with a remainder of 694.
The number 8 becomes the next digit in our result. 
Result so far: 1463.17152858
The remainder is 694 after subtracting 6856 from 7550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

The final result is 1463.17152858 with a remainder of 6.94e-07.