We divide 13971398 by 286
The aim is to understand the frequency of 286 in 13971398.

Let's proceed to step 1:
The number 286 fits into 1 0 times, leaving 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.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 286

Advancing to step 2:
286 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 286

Step 3:
286 can be fit into 139 0 times, resulting in a remainder of 139.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 139 to get 139.
Grab the next digit (7) from the dividend, add it to 139, then carry on: 1397 / 286

Let's proceed to step 4:
1397 divided by 286 is 4 with a remainder of 253.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 253 after subtracting 1144 from 1397.
Take the next digit (1) from the dividend and append it to 253, then repeat: 2531 / 286

Moving on to step 5:
286 goes into 2531 8 times with a remainder of 243.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we subtract 2288 from 2531, we get 243.
Bring next digit (3) of the dividend behind the 243 and repeat the process: 2433 / 286

Advancing to step 6:
2433 divided by 286 is 8 with a remainder of 145.
Record the quotient 8 as the next digit in the result. 
Result so far: 488.0
If we subtract 2288 from 2433, we get 145.
Append the next digit (9) from the dividend to 145 and continue with: 1459 / 286

On to step 7:
When dividing 1459 by 286, we get 5 with a remainder of 29.
Record the quotient 5 as the next digit in the result. 
Result so far: 4885.0
If we take 1430 away from 1459, we end up with 29.
Fetch the next digit (8) from the dividend, attach it to 29 and continue: 298 / 286

Moving on to step 8:
298 divided by 286 is 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 48851.0
Subtract 286 from 298 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
120 divided by 286 is 0 with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 48851.0
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 10:
1200 divided by 286 is 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 48851.04
If we take 1144 away from 1200, 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.

Advancing to step 11:
The number 286 fits into 560 1 times, leaving a remainder of 274.
The next digit of our result is 1. 
Result so far: 48851.041
If we take 286 away from 560, we end up with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 12:
When dividing 2740 by 286, we get 9 with a remainder of 166.
Record the quotient 9 as the next digit in the result. 
Result so far: 48851.0419
If we take 2574 away from 2740, we end up with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Moving on to step 13:
286 goes into 1660 5 times with a remainder of 230.
Write down 5 as next digit of the result. 
Result so far: 48851.04195
Deduct 1430 from 1660 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 14:
286 goes into 2300 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 48851.041958
The remainder is 12 after subtracting 2288 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 15:
If we divide 120 by 286, we get 0 and a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 48851.041958
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
286 goes into 1200 4 times with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 48851.04195804
Subtract 1144 from 1200 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final result is 48851.04195804 with a remainder of 5.6e-08.