We're dividing 19611209 by 363 
The aim is to understand the frequency of 363 in 19611209.

Let's proceed to step 1:
If we divide 1 by 363, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 363

Let's proceed to step 2:
363 goes into 19 0 times with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Grab the next digit (6) from the dividend, add it to 19, then carry on: 196 / 363

Advancing to step 3:
The number 363 fits into 196 0 times, leaving a remainder of 196.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 196 leaves us with 196.
Take the next digit (1) from the dividend and append it to 196, then repeat: 1961 / 363

Going ahead to step 4:
The number 363 fits into 1961 5 times, leaving a remainder of 146.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 1815 from 1961 and we're left with 146.
Fetch the next digit (1) from the dividend, attach it to 146 and continue: 1461 / 363

On to step 5:
1461 divided by 363 is 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 54.0
If we subtract 1452 from 1461, we get 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 363

Let's proceed to step 6:
363 goes into 92 0 times with a remainder of 92.
Record the quotient 0 as the next digit in the result. 
Result so far: 540.0
Subtract 0 from 92 to get 92.
Take the next digit (0) from the dividend and append it to 92, then repeat: 920 / 363

Let's proceed to step 7:
The number 363 fits into 920 2 times, leaving a remainder of 194.
Put 2 as the next digit of the answer. 
Result so far: 5402.0
If we subtract 726 from 920, we get 194.
Include the next digit (9) from the dividend after 194, then repeat: 1949 / 363

Step 8:
363 can be fit into 1949 5 times, resulting in a remainder of 134.
The number 5 becomes the next digit in our result. 
Result so far: 54025.0
If we take 1815 away from 1949, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 9:
If we divide 1340 by 363, we get 3 and a remainder of 251.
Write down 3 as next digit of the result. 
Result so far: 54025.3
Deduct 1089 from 1340 and we're left with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Step 10:
363 goes into 2510 6 times with a remainder of 332.
The next digit of our result is 6. 
Result so far: 54025.36
Deduct 2178 from 2510 and we're left with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Advancing to step 11:
The number 363 fits into 3320 9 times, leaving a remainder of 53.
Use 9 as the next digit of our solution. 
Result so far: 54025.369
Subtract 3267 from 3320 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 12:
363 goes into 530 1 times with a remainder of 167.
Record the quotient 1 as the next digit in the result. 
Result so far: 54025.3691
Deduct 363 from 530 and we're left with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Moving on to step 13:
363 can be fit into 1670 4 times, resulting in a remainder of 218.
Put 4 as the next digit of the answer. 
Result so far: 54025.36914
Subtracting 1452 from 1670 leaves us with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Step 14:
2180 divided by 363 is 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 54025.369146
Subtracting 2178 from 2180 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 15:
If we divide 20 by 363, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 54025.369146
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 16:
363 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 54025.369146
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Our division results in 54025.369146 with a remaining 2e-07.