We're dividing 66283161 by 820 
The aim is to understand the frequency of 820 in 66283161.

Step 1:
820 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 820

Step 2:
When dividing 66 by 820, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Append the next digit (2) from the dividend to 66 and continue with: 662 / 820

Advancing to step 3:
When dividing 662 by 820, we get 0 with a remainder of 662.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 662 to get 662.
Grab the next digit (8) from the dividend, add it to 662, then carry on: 6628 / 820

Advancing to step 4:
6628 divided by 820 is 8 with a remainder of 68.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 68 after subtracting 6560 from 6628.
Bring next digit (3) of the dividend behind the 68 and repeat the process: 683 / 820

Let's proceed to step 5:
If we divide 683 by 820, we get 0 and a remainder of 683.
Write down 0 as next digit of the result. 
Result so far: 80.0
The remainder is 683 after subtracting 0 from 683.
Append the next digit (1) from the dividend to 683 and continue with: 6831 / 820

Step 6:
When dividing 6831 by 820, we get 8 with a remainder of 271.
Put 8 as the next digit of the answer. 
Result so far: 808.0
If we take 6560 away from 6831, we end up with 271.
Grab the next digit (6) from the dividend, add it to 271, then carry on: 2716 / 820

Going ahead to step 7:
2716 divided by 820 is 3 with a remainder of 256.
The number 3 becomes the next digit in our result. 
Result so far: 8083.0
Subtract 2460 from 2716 to get 256.
Take the next digit (1) from the dividend and append it to 256, then repeat: 2561 / 820

Going ahead to step 8:
2561 divided by 820 is 3 with a remainder of 101.
Use 3 as the next digit of our solution. 
Result so far: 80833.0
If we take 2460 away from 2561, we end up with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Step 9:
The number 820 fits into 1010 1 times, leaving a remainder of 190.
Record the quotient 1 as the next digit in the result. 
Result so far: 80833.1
Subtract 820 from 1010 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
When dividing 1900 by 820, we get 2 with a remainder of 260.
Put 2 as the next digit of the answer. 
Result so far: 80833.12
Subtracting 1640 from 1900 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 11:
820 goes into 2600 3 times with a remainder of 140.
Record the quotient 3 as the next digit in the result. 
Result so far: 80833.123
Deduct 2460 from 2600 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 12:
820 goes into 1400 1 times with a remainder of 580.
The number 1 becomes the next digit in our result. 
Result so far: 80833.1231
Subtract 820 from 1400 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

On to step 13:
5800 divided by 820 is 7 with a remainder of 60.
The next digit of our result is 7. 
Result so far: 80833.12317
If we subtract 5740 from 5800, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
If we divide 600 by 820, we get 0 and a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 80833.12317
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 15:
If we divide 6000 by 820, we get 7 and a remainder of 260.
The number 7 becomes the next digit in our result. 
Result so far: 80833.1231707
The remainder is 260 after subtracting 5740 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 16:
When dividing 2600 by 820, we get 3 with a remainder of 140.
Write down 3 as next digit of the result. 
Result so far: 80833.12317073
If we subtract 2460 from 2600, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 80833.12317073 with a remaining 1.4e-07.