We divide 85666785 by 821
The aim is to understand the frequency of 821 in 85666785.

Going ahead to step 1:
821 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 821

Moving on to step 2:
821 goes into 85 0 times with a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Grab the next digit (6) from the dividend, add it to 85, then carry on: 856 / 821

Step 3:
856 divided by 821 is 1 with a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 35 after subtracting 821 from 856.
Append the next digit (6) from the dividend to 35 and continue with: 356 / 821

Moving on to step 4:
When dividing 356 by 821, we get 0 with a remainder of 356.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 356 leaves us with 356.
Grab the next digit (6) from the dividend, add it to 356, then carry on: 3566 / 821

Let's proceed to step 5:
821 goes into 3566 4 times with a remainder of 282.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Subtract 3284 from 3566 to get 282.
Include the next digit (7) from the dividend after 282, then repeat: 2827 / 821

Let's proceed to step 6:
2827 divided by 821 is 3 with a remainder of 364.
Write down 3 as next digit of the result. 
Result so far: 1043.0
The remainder is 364 after subtracting 2463 from 2827.
Append the next digit (8) from the dividend to 364 and continue with: 3648 / 821

Going ahead to step 7:
When dividing 3648 by 821, we get 4 with a remainder of 364.
The number 4 becomes the next digit in our result. 
Result so far: 10434.0
Deduct 3284 from 3648 and we're left with 364.
Append the next digit (5) from the dividend to 364 and continue with: 3645 / 821

On to step 8:
821 goes into 3645 4 times with a remainder of 361.
Use 4 as the next digit of our solution. 
Result so far: 104344.0
Subtract 3284 from 3645 to get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Going ahead to step 9:
821 can be fit into 3610 4 times, resulting in a remainder of 326.
Write down 4 as next digit of the result. 
Result so far: 104344.4
Subtracting 3284 from 3610 leaves us with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Moving on to step 10:
If we divide 3260 by 821, we get 3 and a remainder of 797.
Write down 3 as next digit of the result. 
Result so far: 104344.43
The remainder is 797 after subtracting 2463 from 3260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7970, and continue the process.

Advancing to step 11:
821 goes into 7970 9 times with a remainder of 581.
Use 9 as the next digit of our solution. 
Result so far: 104344.439
Deduct 7389 from 7970 and we're left with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Let's proceed to step 12:
821 can be fit into 5810 7 times, resulting in a remainder of 63.
Use 7 as the next digit of our solution. 
Result so far: 104344.4397
Deduct 5747 from 5810 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 13:
630 divided by 821 is 0 with a remainder of 630.
The number 0 becomes the next digit in our result. 
Result so far: 104344.4397
Deduct 0 from 630 and we're left with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Moving on to step 14:
821 goes into 6300 7 times with a remainder of 553.
Put 7 as the next digit of the answer. 
Result so far: 104344.439707
If we take 5747 away from 6300, we end up with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

On to step 15:
When dividing 5530 by 821, we get 6 with a remainder of 604.
Put 6 as the next digit of the answer. 
Result so far: 104344.4397076
The remainder is 604 after subtracting 4926 from 5530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 16:
821 goes into 6040 7 times with a remainder of 293.
The next digit of our result is 7. 
Result so far: 104344.43970767
If we take 5747 away from 6040, we end up with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

After the division, we end up with 104344.43970767 and a remainder of 2.93e-07.