We look at the division of 13862643 by 426 
The aim is to understand the frequency of 426 in 13862643.

Advancing to step 1:
The number 426 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 426

Step 2:
If we divide 13 by 426, we get 0 and a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 426

Advancing to step 3:
426 can be fit into 138 0 times, resulting in a remainder of 138.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 138, we end up with 138.
Include the next digit (6) from the dividend after 138, then repeat: 1386 / 426

Step 4:
When dividing 1386 by 426, we get 3 with a remainder of 108.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 1278 from 1386, we get 108.
Take the next digit (2) from the dividend and append it to 108, then repeat: 1082 / 426

Let's proceed to step 5:
If we divide 1082 by 426, we get 2 and a remainder of 230.
Write down 2 as next digit of the result. 
Result so far: 32.0
Deduct 852 from 1082 and we're left with 230.
Take the next digit (6) from the dividend and append it to 230, then repeat: 2306 / 426

Going ahead to step 6:
When dividing 2306 by 426, we get 5 with a remainder of 176.
The next digit of our result is 5. 
Result so far: 325.0
Subtract 2130 from 2306 to get 176.
Include the next digit (4) from the dividend after 176, then repeat: 1764 / 426

Step 7:
When dividing 1764 by 426, we get 4 with a remainder of 60.
Use 4 as the next digit of our solution. 
Result so far: 3254.0
Subtract 1704 from 1764 to get 60.
Take the next digit (3) from the dividend and append it to 60, then repeat: 603 / 426

Advancing to step 8:
426 can be fit into 603 1 times, resulting in a remainder of 177.
Use 1 as the next digit of our solution. 
Result so far: 32541.0
Deduct 426 from 603 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Let's proceed to step 9:
426 goes into 1770 4 times with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 32541.4
Subtract 1704 from 1770 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 10:
426 goes into 660 1 times with a remainder of 234.
Use 1 as the next digit of our solution. 
Result so far: 32541.41
Subtracting 426 from 660 leaves us with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Step 11:
2340 divided by 426 is 5 with a remainder of 210.
Use 5 as the next digit of our solution. 
Result so far: 32541.415
Deduct 2130 from 2340 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 12:
When dividing 2100 by 426, we get 4 with a remainder of 396.
Write down 4 as next digit of the result. 
Result so far: 32541.4154
If we take 1704 away from 2100, we end up with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Going ahead to step 13:
3960 divided by 426 is 9 with a remainder of 126.
Use 9 as the next digit of our solution. 
Result so far: 32541.41549
Subtract 3834 from 3960 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 14:
The number 426 fits into 1260 2 times, leaving a remainder of 408.
The next digit of our result is 2. 
Result so far: 32541.415492
Deduct 852 from 1260 and we're left with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Advancing to step 15:
426 can be fit into 4080 9 times, resulting in a remainder of 246.
The number 9 becomes the next digit in our result. 
Result so far: 32541.4154929
If we subtract 3834 from 4080, we get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Going ahead to step 16:
The number 426 fits into 2460 5 times, leaving a remainder of 330.
The next digit of our result is 5. 
Result so far: 32541.41549295
Subtract 2130 from 2460 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.

In conclusion, the division gives 32541.41549295 with a balance of 3.3e-07.