We look at the division of 33988013 by 803 
The aim is to understand the frequency of 803 in 33988013.

Let's proceed to step 1:
When dividing 3 by 803, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 803

On to step 2:
If we divide 33 by 803, we get 0 and a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Include the next digit (9) from the dividend after 33, then repeat: 339 / 803

Going ahead to step 3:
803 can be fit into 339 0 times, resulting in a remainder of 339.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 339, we get 339.
Grab the next digit (8) from the dividend, add it to 339, then carry on: 3398 / 803

Going ahead to step 4:
3398 divided by 803 is 4 with a remainder of 186.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 3212 from 3398 and we're left with 186.
Bring next digit (8) of the dividend behind the 186 and repeat the process: 1868 / 803

On to step 5:
If we divide 1868 by 803, we get 2 and a remainder of 262.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
If we subtract 1606 from 1868, we get 262.
Bring next digit (0) of the dividend behind the 262 and repeat the process: 2620 / 803

On to step 6:
803 goes into 2620 3 times with a remainder of 211.
The number 3 becomes the next digit in our result. 
Result so far: 423.0
The remainder is 211 after subtracting 2409 from 2620.
Bring next digit (1) of the dividend behind the 211 and repeat the process: 2111 / 803

Step 7:
If we divide 2111 by 803, we get 2 and a remainder of 505.
The number 2 becomes the next digit in our result. 
Result so far: 4232.0
Subtract 1606 from 2111 to get 505.
Take the next digit (3) from the dividend and append it to 505, then repeat: 5053 / 803

Moving on to step 8:
If we divide 5053 by 803, we get 6 and a remainder of 235.
Record the quotient 6 as the next digit in the result. 
Result so far: 42326.0
Subtract 4818 from 5053 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 9:
803 can be fit into 2350 2 times, resulting in a remainder of 744.
Use 2 as the next digit of our solution. 
Result so far: 42326.2
If we subtract 1606 from 2350, we get 744.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7440, and continue the process.

Going ahead to step 10:
If we divide 7440 by 803, we get 9 and a remainder of 213.
The number 9 becomes the next digit in our result. 
Result so far: 42326.29
Deduct 7227 from 7440 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Moving on to step 11:
2130 divided by 803 is 2 with a remainder of 524.
Record the quotient 2 as the next digit in the result. 
Result so far: 42326.292
If we subtract 1606 from 2130, we get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Advancing to step 12:
The number 803 fits into 5240 6 times, leaving a remainder of 422.
The next digit of our result is 6. 
Result so far: 42326.2926
If we subtract 4818 from 5240, we get 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Going ahead to step 13:
803 goes into 4220 5 times with a remainder of 205.
The number 5 becomes the next digit in our result. 
Result so far: 42326.29265
If we take 4015 away from 4220, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 14:
If we divide 2050 by 803, we get 2 and a remainder of 444.
The next digit of our result is 2. 
Result so far: 42326.292652
If we subtract 1606 from 2050, we get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Let's proceed to step 15:
803 can be fit into 4440 5 times, resulting in a remainder of 425.
Record the quotient 5 as the next digit in the result. 
Result so far: 42326.2926525
Subtracting 4015 from 4440 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

On to step 16:
803 goes into 4250 5 times with a remainder of 235.
Record the quotient 5 as the next digit in the result. 
Result so far: 42326.29265255
The remainder is 235 after subtracting 4015 from 4250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

The final result is 42326.29265255 with a remainder of 2.35e-07.