Let's divide 97002904 by 821
The aim is to understand the frequency of 821 in 97002904.

Going ahead to step 1:
When dividing 9 by 821, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 821

Moving on to step 2:
97 divided by 821 is 0 with a remainder of 97.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 97, we get 97.
Take the next digit (0) from the dividend and append it to 97, then repeat: 970 / 821

Going ahead to step 3:
821 can be fit into 970 1 times, resulting in a remainder of 149.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 821 from 970 to get 149.
Fetch the next digit (0) from the dividend, attach it to 149 and continue: 1490 / 821

On to step 4:
If we divide 1490 by 821, we get 1 and a remainder of 669.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 821 from 1490 leaves us with 669.
Grab the next digit (2) from the dividend, add it to 669, then carry on: 6692 / 821

Going ahead to step 5:
The number 821 fits into 6692 8 times, leaving a remainder of 124.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
Subtracting 6568 from 6692 leaves us with 124.
Bring next digit (9) of the dividend behind the 124 and repeat the process: 1249 / 821

Advancing to step 6:
1249 divided by 821 is 1 with a remainder of 428.
Put 1 as the next digit of the answer. 
Result so far: 1181.0
Deduct 821 from 1249 and we're left with 428.
Bring next digit (0) of the dividend behind the 428 and repeat the process: 4280 / 821

Moving on to step 7:
When dividing 4280 by 821, we get 5 with a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 11815.0
Subtract 4105 from 4280 to get 175.
Bring next digit (4) of the dividend behind the 175 and repeat the process: 1754 / 821

On to step 8:
If we divide 1754 by 821, we get 2 and a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 118152.0
If we subtract 1642 from 1754, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 9:
If we divide 1120 by 821, we get 1 and a remainder of 299.
The next digit of our result is 1. 
Result so far: 118152.1
If we subtract 821 from 1120, we get 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Advancing to step 10:
821 can be fit into 2990 3 times, resulting in a remainder of 527.
Use 3 as the next digit of our solution. 
Result so far: 118152.13
Subtract 2463 from 2990 to get 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

Let's proceed to step 11:
821 can be fit into 5270 6 times, resulting in a remainder of 344.
Record the quotient 6 as the next digit in the result. 
Result so far: 118152.136
If we take 4926 away from 5270, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 12:
The number 821 fits into 3440 4 times, leaving a remainder of 156.
Put 4 as the next digit of the answer. 
Result so far: 118152.1364
Subtract 3284 from 3440 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 13:
1560 divided by 821 is 1 with a remainder of 739.
Record the quotient 1 as the next digit in the result. 
Result so far: 118152.13641
If we take 821 away from 1560, we end up with 739.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7390, and continue the process.

Let's proceed to step 14:
The number 821 fits into 7390 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 118152.136419
The remainder is 1 after subtracting 7389 from 7390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 15:
821 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 118152.136419
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 16:
If we divide 100 by 821, we get 0 and a remainder of 100.
The next digit of our result is 0. 
Result so far: 118152.136419
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 118152.136419, and the remainder is 1e-07.