We look at the division of 20331821 by 902 
The aim is to understand the frequency of 902 in 20331821.

Moving on to step 1:
When dividing 2 by 902, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 902

On to step 2:
902 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 902

Let's proceed to step 3:
If we divide 203 by 902, we get 0 and a remainder of 203.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 203 and we're left with 203.
Bring next digit (3) of the dividend behind the 203 and repeat the process: 2033 / 902

Step 4:
2033 divided by 902 is 2 with a remainder of 229.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 1804 from 2033 leaves us with 229.
Fetch the next digit (1) from the dividend, attach it to 229 and continue: 2291 / 902

Going ahead to step 5:
902 goes into 2291 2 times with a remainder of 487.
Write down 2 as next digit of the result. 
Result so far: 22.0
If we subtract 1804 from 2291, we get 487.
Grab the next digit (8) from the dividend, add it to 487, then carry on: 4878 / 902

Step 6:
902 can be fit into 4878 5 times, resulting in a remainder of 368.
The number 5 becomes the next digit in our result. 
Result so far: 225.0
If we subtract 4510 from 4878, we get 368.
Bring next digit (2) of the dividend behind the 368 and repeat the process: 3682 / 902

Moving on to step 7:
If we divide 3682 by 902, we get 4 and a remainder of 74.
Record the quotient 4 as the next digit in the result. 
Result so far: 2254.0
If we subtract 3608 from 3682, we get 74.
Bring next digit (1) of the dividend behind the 74 and repeat the process: 741 / 902

Step 8:
If we divide 741 by 902, we get 0 and a remainder of 741.
The next digit of our result is 0. 
Result so far: 22540.0
If we take 0 away from 741, we end up with 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Moving on to step 9:
When dividing 7410 by 902, we get 8 with a remainder of 194.
Record the quotient 8 as the next digit in the result. 
Result so far: 22540.8
Deduct 7216 from 7410 and we're left with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 10:
902 can be fit into 1940 2 times, resulting in a remainder of 136.
Write down 2 as next digit of the result. 
Result so far: 22540.82
Subtract 1804 from 1940 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 11:
1360 divided by 902 is 1 with a remainder of 458.
The next digit of our result is 1. 
Result so far: 22540.821
If we subtract 902 from 1360, we get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Advancing to step 12:
If we divide 4580 by 902, we get 5 and a remainder of 70.
The next digit of our result is 5. 
Result so far: 22540.8215
Subtracting 4510 from 4580 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 13:
700 divided by 902 is 0 with a remainder of 700.
The number 0 becomes the next digit in our result. 
Result so far: 22540.8215
Deduct 0 from 700 and we're left with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Let's proceed to step 14:
The number 902 fits into 7000 7 times, leaving a remainder of 686.
The next digit of our result is 7. 
Result so far: 22540.821507
If we subtract 6314 from 7000, we get 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

Moving on to step 15:
902 goes into 6860 7 times with a remainder of 546.
Put 7 as the next digit of the answer. 
Result so far: 22540.8215077
Subtracting 6314 from 6860 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

In conclusion, the division gives 22540.8215077 with a balance of 5.46e-06.