We divide 86256857 by 921
The aim is to understand the frequency of 921 in 86256857.

Advancing to step 1:
The number 921 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 921

Let's proceed to step 2:
921 can be fit into 86 0 times, resulting in a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Fetch the next digit (2) from the dividend, attach it to 86 and continue: 862 / 921

Going ahead to step 3:
921 goes into 862 0 times with a remainder of 862.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 862 to get 862.
Fetch the next digit (5) from the dividend, attach it to 862 and continue: 8625 / 921

Let's proceed to step 4:
921 goes into 8625 9 times with a remainder of 336.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 336 after subtracting 8289 from 8625.
Append the next digit (6) from the dividend to 336 and continue with: 3366 / 921

Advancing to step 5:
If we divide 3366 by 921, we get 3 and a remainder of 603.
Put 3 as the next digit of the answer. 
Result so far: 93.0
Subtract 2763 from 3366 to get 603.
Grab the next digit (8) from the dividend, add it to 603, then carry on: 6038 / 921

Going ahead to step 6:
If we divide 6038 by 921, we get 6 and a remainder of 512.
The next digit of our result is 6. 
Result so far: 936.0
Deduct 5526 from 6038 and we're left with 512.
Append the next digit (5) from the dividend to 512 and continue with: 5125 / 921

Moving on to step 7:
When dividing 5125 by 921, we get 5 with a remainder of 520.
Write down 5 as next digit of the result. 
Result so far: 9365.0
Deduct 4605 from 5125 and we're left with 520.
Fetch the next digit (7) from the dividend, attach it to 520 and continue: 5207 / 921

On to step 8:
If we divide 5207 by 921, we get 5 and a remainder of 602.
Write down 5 as next digit of the result. 
Result so far: 93655.0
The remainder is 602 after subtracting 4605 from 5207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Going ahead to step 9:
921 goes into 6020 6 times with a remainder of 494.
Record the quotient 6 as the next digit in the result. 
Result so far: 93655.6
Subtracting 5526 from 6020 leaves us with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Step 10:
4940 divided by 921 is 5 with a remainder of 335.
Use 5 as the next digit of our solution. 
Result so far: 93655.65
The remainder is 335 after subtracting 4605 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Moving on to step 11:
The number 921 fits into 3350 3 times, leaving a remainder of 587.
The next digit of our result is 3. 
Result so far: 93655.653
If we take 2763 away from 3350, we end up 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.

Step 12:
The number 921 fits into 5870 6 times, leaving a remainder of 344.
The number 6 becomes the next digit in our result. 
Result so far: 93655.6536
The remainder is 344 after subtracting 5526 from 5870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Going ahead to step 13:
If we divide 3440 by 921, we get 3 and a remainder of 677.
Use 3 as the next digit of our solution. 
Result so far: 93655.65363
The remainder is 677 after subtracting 2763 from 3440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6770, and continue the process.

On to step 14:
If we divide 6770 by 921, we get 7 and a remainder of 323.
Use 7 as the next digit of our solution. 
Result so far: 93655.653637
Deduct 6447 from 6770 and we're left with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Step 15:
The number 921 fits into 3230 3 times, leaving a remainder of 467.
The next digit of our result is 3. 
Result so far: 93655.6536373
Subtracting 2763 from 3230 leaves us with 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Step 16:
If we divide 4670 by 921, we get 5 and a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 93655.65363735
The remainder is 65 after subtracting 4605 from 4670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 93655.65363735 and a remainder of 6.5e-08.