29124992 divided by 821 
The aim is to understand the frequency of 821 in 29124992.

Going ahead to step 1:
If we divide 2 by 821, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 821

Advancing to step 2:
821 can be fit into 29 0 times, resulting in a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 29 leaves us with 29.
Fetch the next digit (1) from the dividend, attach it to 29 and continue: 291 / 821

On to step 3:
If we divide 291 by 821, we get 0 and a remainder of 291.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 291 and we're left with 291.
Append the next digit (2) from the dividend to 291 and continue with: 2912 / 821

Step 4:
2912 divided by 821 is 3 with a remainder of 449.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 2463 from 2912, we get 449.
Fetch the next digit (4) from the dividend, attach it to 449 and continue: 4494 / 821

Going ahead to step 5:
821 can be fit into 4494 5 times, resulting in a remainder of 389.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Deduct 4105 from 4494 and we're left with 389.
Append the next digit (9) from the dividend to 389 and continue with: 3899 / 821

Moving on to step 6:
3899 divided by 821 is 4 with a remainder of 615.
Put 4 as the next digit of the answer. 
Result so far: 354.0
Subtracting 3284 from 3899 leaves us with 615.
Grab the next digit (9) from the dividend, add it to 615, then carry on: 6159 / 821

Let's proceed to step 7:
821 goes into 6159 7 times with a remainder of 412.
The next digit of our result is 7. 
Result so far: 3547.0
If we subtract 5747 from 6159, we get 412.
Fetch the next digit (2) from the dividend, attach it to 412 and continue: 4122 / 821

Step 8:
The number 821 fits into 4122 5 times, leaving a remainder of 17.
The number 5 becomes the next digit in our result. 
Result so far: 35475.0
Subtracting 4105 from 4122 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
821 can be fit into 170 0 times, resulting in a remainder of 170.
The next digit of our result is 0. 
Result so far: 35475.0
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
821 can be fit into 1700 2 times, resulting in a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 35475.02
Subtracting 1642 from 1700 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 11:
821 can be fit into 580 0 times, resulting in a remainder of 580.
Record the quotient 0 as the next digit in the result. 
Result so far: 35475.02
If we take 0 away from 580, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 12:
5800 divided by 821 is 7 with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 35475.0207
If we take 5747 away from 5800, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 13:
530 divided by 821 is 0 with a remainder of 530.
Use 0 as the next digit of our solution. 
Result so far: 35475.0207
Deduct 0 from 530 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Moving on to step 14:
When dividing 5300 by 821, we get 6 with a remainder of 374.
Put 6 as the next digit of the answer. 
Result so far: 35475.020706
Deduct 4926 from 5300 and we're left with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Going ahead to step 15:
When dividing 3740 by 821, we get 4 with a remainder of 456.
Record the quotient 4 as the next digit in the result. 
Result so far: 35475.0207064
Deduct 3284 from 3740 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Step 16:
When dividing 4560 by 821, we get 5 with a remainder of 455.
The number 5 becomes the next digit in our result. 
Result so far: 35475.02070645
If we subtract 4105 from 4560, we get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

After the division, we end up with 35475.02070645 and a remainder of 4.55e-07.