30313248 ÷ 821 
The aim is to understand the frequency of 821 in 30313248.

Step 1:
3 divided by 821 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 821

Step 2:
821 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 821

Advancing to step 3:
When dividing 303 by 821, we get 0 with a remainder of 303.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 303 to get 303.
Take the next digit (1) from the dividend and append it to 303, then repeat: 3031 / 821

On to step 4:
The number 821 fits into 3031 3 times, leaving a remainder of 568.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 2463 from 3031 and we're left with 568.
Append the next digit (3) from the dividend to 568 and continue with: 5683 / 821

Moving on to step 5:
821 goes into 5683 6 times with a remainder of 757.
Write down 6 as next digit of the result. 
Result so far: 36.0
The remainder is 757 after subtracting 4926 from 5683.
Take the next digit (2) from the dividend and append it to 757, then repeat: 7572 / 821

Step 6:
When dividing 7572 by 821, we get 9 with a remainder of 183.
The next digit of our result is 9. 
Result so far: 369.0
Deduct 7389 from 7572 and we're left with 183.
Fetch the next digit (4) from the dividend, attach it to 183 and continue: 1834 / 821

Going ahead to step 7:
If we divide 1834 by 821, we get 2 and a remainder of 192.
The number 2 becomes the next digit in our result. 
Result so far: 3692.0
If we take 1642 away from 1834, we end up with 192.
Bring next digit (8) of the dividend behind the 192 and repeat the process: 1928 / 821

Let's proceed to step 8:
1928 divided by 821 is 2 with a remainder of 286.
The next digit of our result is 2. 
Result so far: 36922.0
Subtract 1642 from 1928 to get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 9:
821 goes into 2860 3 times with a remainder of 397.
The number 3 becomes the next digit in our result. 
Result so far: 36922.3
If we take 2463 away from 2860, we end up with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Let's proceed to step 10:
The number 821 fits into 3970 4 times, leaving a remainder of 686.
Write down 4 as next digit of the result. 
Result so far: 36922.34
If we take 3284 away from 3970, we end up with 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

Let's proceed to step 11:
The number 821 fits into 6860 8 times, leaving a remainder of 292.
Put 8 as the next digit of the answer. 
Result so far: 36922.348
If we take 6568 away from 6860, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 12:
When dividing 2920 by 821, we get 3 with a remainder of 457.
The number 3 becomes the next digit in our result. 
Result so far: 36922.3483
If we subtract 2463 from 2920, we get 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

Step 13:
821 can be fit into 4570 5 times, resulting in a remainder of 465.
Record the quotient 5 as the next digit in the result. 
Result so far: 36922.34835
Subtracting 4105 from 4570 leaves us with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Let's proceed to step 14:
4650 divided by 821 is 5 with a remainder of 545.
The next digit of our result is 5. 
Result so far: 36922.348355
Deduct 4105 from 4650 and we're left with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

The final outcome is 36922.348355, with a leftover of 5.45e-05.