We're dividing 15270233 by 355 
The aim is to understand the frequency of 355 in 15270233.

Let's proceed to step 1:
When dividing 1 by 355, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 355

On to step 2:
355 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 355

Step 3:
355 can be fit into 152 0 times, resulting in a remainder of 152.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 152, we get 152.
Grab the next digit (7) from the dividend, add it to 152, then carry on: 1527 / 355

Moving on to step 4:
355 goes into 1527 4 times with a remainder of 107.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 1420 away from 1527, we end up with 107.
Grab the next digit (0) from the dividend, add it to 107, then carry on: 1070 / 355

Going ahead to step 5:
When dividing 1070 by 355, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 1065 from 1070, we get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 355

Let's proceed to step 6:
When dividing 52 by 355, we get 0 with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 430.0
Deduct 0 from 52 and we're left with 52.
Grab the next digit (3) from the dividend, add it to 52, then carry on: 523 / 355

Let's proceed to step 7:
523 divided by 355 is 1 with a remainder of 168.
The next digit of our result is 1. 
Result so far: 4301.0
If we take 355 away from 523, we end up with 168.
Append the next digit (3) from the dividend to 168 and continue with: 1683 / 355

Step 8:
355 can be fit into 1683 4 times, resulting in a remainder of 263.
The next digit of our result is 4. 
Result so far: 43014.0
Subtracting 1420 from 1683 leaves us with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Step 9:
If we divide 2630 by 355, we get 7 and a remainder of 145.
Record the quotient 7 as the next digit in the result. 
Result so far: 43014.7
If we subtract 2485 from 2630, we get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 10:
355 can be fit into 1450 4 times, resulting in a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 43014.74
If we take 1420 away from 1450, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
If we divide 300 by 355, we get 0 and a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 43014.74
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 12:
The number 355 fits into 3000 8 times, leaving a remainder of 160.
Record the quotient 8 as the next digit in the result. 
Result so far: 43014.7408
Subtracting 2840 from 3000 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 13:
When dividing 1600 by 355, we get 4 with a remainder of 180.
Record the quotient 4 as the next digit in the result. 
Result so far: 43014.74084
If we take 1420 away from 1600, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 14:
If we divide 1800 by 355, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 43014.740845
Subtract 1775 from 1800 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 15:
If we divide 250 by 355, we get 0 and a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 43014.740845
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 16:
The number 355 fits into 2500 7 times, leaving a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 43014.74084507
If we take 2485 away from 2500, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

After the division, we end up with 43014.74084507 and a remainder of 1.5e-08.