Let's divide 33903800 by 851
The aim is to understand the frequency of 851 in 33903800.

Moving on to step 1:
When dividing 3 by 851, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 851

Going ahead to step 2:
851 goes into 33 0 times with 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.
Fetch the next digit (9) from the dividend, attach it to 33 and continue: 339 / 851

Moving on to step 3:
851 can be fit into 339 0 times, resulting in a remainder of 339.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 339 to get 339.
Include the next digit (0) from the dividend after 339, then repeat: 3390 / 851

On to step 4:
If we divide 3390 by 851, we get 3 and a remainder of 837.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 2553 from 3390 leaves us with 837.
Take the next digit (3) from the dividend and append it to 837, then repeat: 8373 / 851

Let's proceed to step 5:
If we divide 8373 by 851, we get 9 and a remainder of 714.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Deduct 7659 from 8373 and we're left with 714.
Include the next digit (8) from the dividend after 714, then repeat: 7148 / 851

Moving on to step 6:
7148 divided by 851 is 8 with a remainder of 340.
The number 8 becomes the next digit in our result. 
Result so far: 398.0
If we subtract 6808 from 7148, we get 340.
Grab the next digit (0) from the dividend, add it to 340, then carry on: 3400 / 851

Let's proceed to step 7:
851 can be fit into 3400 3 times, resulting in a remainder of 847.
Use 3 as the next digit of our solution. 
Result so far: 3983.0
Subtract 2553 from 3400 to get 847.
Append the next digit (0) from the dividend to 847 and continue with: 8470 / 851

Let's proceed to step 8:
If we divide 8470 by 851, we get 9 and a remainder of 811.
The next digit of our result is 9. 
Result so far: 39839.0
Subtracting 7659 from 8470 leaves us with 811.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8110, and continue the process.

Let's proceed to step 9:
The number 851 fits into 8110 9 times, leaving a remainder of 451.
The number 9 becomes the next digit in our result. 
Result so far: 39839.9
Subtracting 7659 from 8110 leaves us with 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Going ahead to step 10:
851 goes into 4510 5 times with a remainder of 255.
Use 5 as the next digit of our solution. 
Result so far: 39839.95
Subtract 4255 from 4510 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 11:
When dividing 2550 by 851, we get 2 with a remainder of 848.
Write down 2 as next digit of the result. 
Result so far: 39839.952
The remainder is 848 after subtracting 1702 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

On to step 12:
851 goes into 8480 9 times with a remainder of 821.
The next digit of our result is 9. 
Result so far: 39839.9529
If we subtract 7659 from 8480, we get 821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8210, and continue the process.

Step 13:
851 can be fit into 8210 9 times, resulting in a remainder of 551.
Record the quotient 9 as the next digit in the result. 
Result so far: 39839.95299
Subtract 7659 from 8210 to get 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

The final outcome is 39839.95299, with a leftover of 0.000551.