We look at the division of 39490872 by 355 
The aim is to understand the frequency of 355 in 39490872.

Step 1:
355 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 355

Going ahead to step 2:
355 can be fit into 39 0 times, resulting in a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 355

Moving on to step 3:
355 goes into 394 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 355 from 394 to get 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 355

Advancing to step 4:
When dividing 399 by 355, we get 1 with a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 355 from 399, we get 44.
Append the next digit (0) from the dividend to 44 and continue with: 440 / 355

Advancing to step 5:
When dividing 440 by 355, we get 1 with a remainder of 85.
Write down 1 as next digit of the result. 
Result so far: 111.0
Deduct 355 from 440 and we're left with 85.
Bring next digit (8) of the dividend behind the 85 and repeat the process: 858 / 355

Going ahead to step 6:
858 divided by 355 is 2 with a remainder of 148.
The next digit of our result is 2. 
Result so far: 1112.0
Deduct 710 from 858 and we're left with 148.
Fetch the next digit (7) from the dividend, attach it to 148 and continue: 1487 / 355

Let's proceed to step 7:
If we divide 1487 by 355, we get 4 and a remainder of 67.
The number 4 becomes the next digit in our result. 
Result so far: 11124.0
Subtract 1420 from 1487 to get 67.
Include the next digit (2) from the dividend after 67, then repeat: 672 / 355

Let's proceed to step 8:
672 divided by 355 is 1 with a remainder of 317.
Use 1 as the next digit of our solution. 
Result so far: 111241.0
Deduct 355 from 672 and we're left with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Let's proceed to step 9:
3170 divided by 355 is 8 with a remainder of 330.
The number 8 becomes the next digit in our result. 
Result so far: 111241.8
Subtract 2840 from 3170 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Going ahead to step 10:
The number 355 fits into 3300 9 times, leaving a remainder of 105.
The next digit of our result is 9. 
Result so far: 111241.89
Subtracting 3195 from 3300 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 11:
355 can be fit into 1050 2 times, resulting in a remainder of 340.
Record the quotient 2 as the next digit in the result. 
Result so far: 111241.892
Subtract 710 from 1050 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 12:
3400 divided by 355 is 9 with a remainder of 205.
Write down 9 as next digit of the result. 
Result so far: 111241.8929
Deduct 3195 from 3400 and we're left 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.

Advancing to step 13:
When dividing 2050 by 355, we get 5 with a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 111241.89295
The remainder is 275 after subtracting 1775 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Step 14:
355 goes into 2750 7 times with a remainder of 265.
The next digit of our result is 7. 
Result so far: 111241.892957
Subtracting 2485 from 2750 leaves us with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Moving on to step 15:
When dividing 2650 by 355, we get 7 with a remainder of 165.
The number 7 becomes the next digit in our result. 
Result so far: 111241.8929577
Subtracting 2485 from 2650 leaves us with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

The final result is 111241.8929577 with a remainder of 1.65e-06.