We look at the division of 82441679 by 621 
The aim is to understand the frequency of 621 in 82441679.

Step 1:
When dividing 8 by 621, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 621

Advancing to step 2:
82 divided by 621 is 0 with a remainder of 82.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 82 and we're left with 82.
Include the next digit (4) from the dividend after 82, then repeat: 824 / 621

On to step 3:
The number 621 fits into 824 1 times, leaving a remainder of 203.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 621 from 824 leaves us with 203.
Bring next digit (4) of the dividend behind the 203 and repeat the process: 2034 / 621

Advancing to step 4:
621 can be fit into 2034 3 times, resulting in a remainder of 171.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 1863 from 2034 leaves us with 171.
Take the next digit (1) from the dividend and append it to 171, then repeat: 1711 / 621

Advancing to step 5:
621 can be fit into 1711 2 times, resulting in a remainder of 469.
The next digit of our result is 2. 
Result so far: 132.0
If we subtract 1242 from 1711, we get 469.
Take the next digit (6) from the dividend and append it to 469, then repeat: 4696 / 621

Going ahead to step 6:
When dividing 4696 by 621, we get 7 with a remainder of 349.
Put 7 as the next digit of the answer. 
Result so far: 1327.0
If we subtract 4347 from 4696, we get 349.
Grab the next digit (7) from the dividend, add it to 349, then carry on: 3497 / 621

On to step 7:
If we divide 3497 by 621, we get 5 and a remainder of 392.
Write down 5 as next digit of the result. 
Result so far: 13275.0
Subtract 3105 from 3497 to get 392.
Include the next digit (9) from the dividend after 392, then repeat: 3929 / 621

Moving on to step 8:
If we divide 3929 by 621, we get 6 and a remainder of 203.
Record the quotient 6 as the next digit in the result. 
Result so far: 132756.0
Deduct 3726 from 3929 and we're left with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Let's proceed to step 9:
The number 621 fits into 2030 3 times, leaving a remainder of 167.
Put 3 as the next digit of the answer. 
Result so far: 132756.3
Subtracting 1863 from 2030 leaves us with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Going ahead to step 10:
If we divide 1670 by 621, we get 2 and a remainder of 428.
Record the quotient 2 as the next digit in the result. 
Result so far: 132756.32
Subtracting 1242 from 1670 leaves us with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 11:
When dividing 4280 by 621, we get 6 with a remainder of 554.
Record the quotient 6 as the next digit in the result. 
Result so far: 132756.326
Subtracting 3726 from 4280 leaves us with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Let's proceed to step 12:
621 can be fit into 5540 8 times, resulting in a remainder of 572.
Use 8 as the next digit of our solution. 
Result so far: 132756.3268
Subtracting 4968 from 5540 leaves us with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Let's proceed to step 13:
The number 621 fits into 5720 9 times, leaving a remainder of 131.
Write down 9 as next digit of the result. 
Result so far: 132756.32689
If we take 5589 away from 5720, 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.

On to step 14:
When dividing 1310 by 621, we get 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 132756.326892
Subtracting 1242 from 1310 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 15:
If we divide 680 by 621, we get 1 and a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 132756.3268921
If we take 621 away from 680, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 16:
When dividing 590 by 621, we get 0 with a remainder of 590.
Write down 0 as next digit of the result. 
Result so far: 132756.3268921
Subtract 0 from 590 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

The quotient of the division is 132756.3268921, and the remainder is 5.9e-07.