We look at the division of 13226050 by 391 
The aim is to understand the frequency of 391 in 13226050.

Advancing to step 1:
When dividing 1 by 391, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 391

Moving on to step 2:
The number 391 fits into 13 0 times, leaving a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (2) from the dividend, add it to 13, then carry on: 132 / 391

Let's proceed to step 3:
391 can be fit into 132 0 times, resulting in a remainder of 132.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 132, we end up with 132.
Bring next digit (2) of the dividend behind the 132 and repeat the process: 1322 / 391

Step 4:
391 can be fit into 1322 3 times, resulting in a remainder of 149.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 1173 from 1322 and we're left with 149.
Fetch the next digit (6) from the dividend, attach it to 149 and continue: 1496 / 391

Moving on to step 5:
The number 391 fits into 1496 3 times, leaving a remainder of 323.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we subtract 1173 from 1496, we get 323.
Include the next digit (0) from the dividend after 323, then repeat: 3230 / 391

On to step 6:
3230 divided by 391 is 8 with a remainder of 102.
Record the quotient 8 as the next digit in the result. 
Result so far: 338.0
Deduct 3128 from 3230 and we're left with 102.
Bring next digit (5) of the dividend behind the 102 and repeat the process: 1025 / 391

Let's proceed to step 7:
When dividing 1025 by 391, we get 2 with a remainder of 243.
The number 2 becomes the next digit in our result. 
Result so far: 3382.0
Subtracting 782 from 1025 leaves us with 243.
Grab the next digit (0) from the dividend, add it to 243, then carry on: 2430 / 391

Let's proceed to step 8:
The number 391 fits into 2430 6 times, leaving a remainder of 84.
Write down 6 as next digit of the result. 
Result so far: 33826.0
The remainder is 84 after subtracting 2346 from 2430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 9:
If we divide 840 by 391, we get 2 and a remainder of 58.
The next digit of our result is 2. 
Result so far: 33826.2
Subtract 782 from 840 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 10:
580 divided by 391 is 1 with a remainder of 189.
Write down 1 as next digit of the result. 
Result so far: 33826.21
The remainder is 189 after subtracting 391 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

On to step 11:
391 can be fit into 1890 4 times, resulting in a remainder of 326.
Write down 4 as next digit of the result. 
Result so far: 33826.214
Subtract 1564 from 1890 to get 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

On to step 12:
391 goes into 3260 8 times with a remainder of 132.
The number 8 becomes the next digit in our result. 
Result so far: 33826.2148
Deduct 3128 from 3260 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 13:
391 goes into 1320 3 times with a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 33826.21483
If we subtract 1173 from 1320, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 14:
The number 391 fits into 1470 3 times, leaving a remainder of 297.
Use 3 as the next digit of our solution. 
Result so far: 33826.214833
Subtracting 1173 from 1470 leaves us with 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Our division results in 33826.214833 with a remaining 2.97e-05.