We look at the division of 17861517 by 383 
The aim is to understand the frequency of 383 in 17861517.

Advancing to step 1:
1 divided by 383 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 383

Advancing to step 2:
383 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 383

Let's proceed to step 3:
383 goes into 178 0 times with a remainder of 178.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 178 leaves us with 178.
Grab the next digit (6) from the dividend, add it to 178, then carry on: 1786 / 383

Moving on to step 4:
The number 383 fits into 1786 4 times, leaving a remainder of 254.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 1532 away from 1786, we end up with 254.
Bring next digit (1) of the dividend behind the 254 and repeat the process: 2541 / 383

Step 5:
The number 383 fits into 2541 6 times, leaving a remainder of 243.
The next digit of our result is 6. 
Result so far: 46.0
Subtracting 2298 from 2541 leaves us with 243.
Fetch the next digit (5) from the dividend, attach it to 243 and continue: 2435 / 383

Step 6:
When dividing 2435 by 383, we get 6 with a remainder of 137.
The next digit of our result is 6. 
Result so far: 466.0
If we take 2298 away from 2435, we end up with 137.
Append the next digit (1) from the dividend to 137 and continue with: 1371 / 383

Step 7:
When dividing 1371 by 383, we get 3 with a remainder of 222.
The number 3 becomes the next digit in our result. 
Result so far: 4663.0
Subtract 1149 from 1371 to get 222.
Include the next digit (7) from the dividend after 222, then repeat: 2227 / 383

Going ahead to step 8:
2227 divided by 383 is 5 with a remainder of 312.
The next digit of our result is 5. 
Result so far: 46635.0
Subtract 1915 from 2227 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Advancing to step 9:
The number 383 fits into 3120 8 times, leaving a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 46635.8
If we take 3064 away from 3120, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 10:
383 can be fit into 560 1 times, resulting in a remainder of 177.
The number 1 becomes the next digit in our result. 
Result so far: 46635.81
The remainder is 177 after subtracting 383 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Moving on to step 11:
When dividing 1770 by 383, we get 4 with a remainder of 238.
The number 4 becomes the next digit in our result. 
Result so far: 46635.814
Subtract 1532 from 1770 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 12:
383 can be fit into 2380 6 times, resulting in a remainder of 82.
The next digit of our result is 6. 
Result so far: 46635.8146
If we take 2298 away from 2380, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 13:
820 divided by 383 is 2 with a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 46635.81462
If we take 766 away from 820, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 14:
If we divide 540 by 383, we get 1 and a remainder of 157.
The next digit of our result is 1. 
Result so far: 46635.814621
Subtracting 383 from 540 leaves us with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Let's proceed to step 15:
When dividing 1570 by 383, we get 4 with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 46635.8146214
Deduct 1532 from 1570 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 16:
When dividing 380 by 383, we get 0 with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 46635.8146214
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

After the division, we end up with 46635.8146214 and a remainder of 3.8e-07.