We look at the division of 13981175 by 286 
The aim is to understand the frequency of 286 in 13981175.

Advancing to step 1:
286 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 286

Let's proceed to step 2:
The number 286 fits into 13 0 times, leaving a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 286

Step 3:
139 divided by 286 is 0 with a remainder of 139.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 139 to get 139.
Grab the next digit (8) from the dividend, add it to 139, then carry on: 1398 / 286

Step 4:
1398 divided by 286 is 4 with a remainder of 254.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 1144 from 1398, we get 254.
Bring next digit (1) of the dividend behind the 254 and repeat the process: 2541 / 286

Advancing to step 5:
2541 divided by 286 is 8 with a remainder of 253.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
The remainder is 253 after subtracting 2288 from 2541.
Bring next digit (1) of the dividend behind the 253 and repeat the process: 2531 / 286

Let's proceed to step 6:
2531 divided by 286 is 8 with a remainder of 243.
Use 8 as the next digit of our solution. 
Result so far: 488.0
Subtracting 2288 from 2531 leaves us with 243.
Take the next digit (7) from the dividend and append it to 243, then repeat: 2437 / 286

Step 7:
The number 286 fits into 2437 8 times, leaving a remainder of 149.
Use 8 as the next digit of our solution. 
Result so far: 4888.0
Subtract 2288 from 2437 to get 149.
Append the next digit (5) from the dividend to 149 and continue with: 1495 / 286

Step 8:
1495 divided by 286 is 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 48885.0
If we subtract 1430 from 1495, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 9:
650 divided by 286 is 2 with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 48885.2
If we subtract 572 from 650, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 10:
286 goes into 780 2 times with a remainder of 208.
Record the quotient 2 as the next digit in the result. 
Result so far: 48885.22
The remainder is 208 after subtracting 572 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

The final result is 48885.22 with a remainder of 0.208.