We're dividing 3868492 by 251 
The aim is to understand the frequency of 251 in 3868492.

Moving on to step 1:
The number 251 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 251

Advancing to step 2:
251 goes into 38 0 times with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Fetch the next digit (6) from the dividend, attach it to 38 and continue: 386 / 251

Going ahead to step 3:
251 can be fit into 386 1 times, resulting in a remainder of 135.
The next digit of our result is 1. 
Result so far: 1.0
If we take 251 away from 386, we end up with 135.
Include the next digit (8) from the dividend after 135, then repeat: 1358 / 251

Moving on to step 4:
1358 divided by 251 is 5 with a remainder of 103.
The next digit of our result is 5. 
Result so far: 15.0
The remainder is 103 after subtracting 1255 from 1358.
Grab the next digit (4) from the dividend, add it to 103, then carry on: 1034 / 251

Step 5:
The number 251 fits into 1034 4 times, leaving a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 154.0
The remainder is 30 after subtracting 1004 from 1034.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 251

Advancing to step 6:
251 can be fit into 309 1 times, resulting in a remainder of 58.
The number 1 becomes the next digit in our result. 
Result so far: 1541.0
If we take 251 away from 309, we end up with 58.
Include the next digit (2) from the dividend after 58, then repeat: 582 / 251

Advancing to step 7:
251 can be fit into 582 2 times, resulting in a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 15412.0
Deduct 502 from 582 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 8:
When dividing 800 by 251, we get 3 with a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 15412.3
The remainder is 47 after subtracting 753 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 9:
The number 251 fits into 470 1 times, leaving a remainder of 219.
Put 1 as the next digit of the answer. 
Result so far: 15412.31
If we take 251 away from 470, we end up with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Going ahead to step 10:
2190 divided by 251 is 8 with a remainder of 182.
Use 8 as the next digit of our solution. 
Result so far: 15412.318
Subtracting 2008 from 2190 leaves us with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 11:
When dividing 1820 by 251, we get 7 with a remainder of 63.
Use 7 as the next digit of our solution. 
Result so far: 15412.3187
The remainder is 63 after subtracting 1757 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 12:
If we divide 630 by 251, we get 2 and a remainder of 128.
The next digit of our result is 2. 
Result so far: 15412.31872
Deduct 502 from 630 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 13:
When dividing 1280 by 251, we get 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 15412.318725
Subtracting 1255 from 1280 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 14:
251 goes into 250 0 times with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 15412.318725
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 15:
251 goes into 2500 9 times with a remainder of 241.
The number 9 becomes the next digit in our result. 
Result so far: 15412.31872509
Subtract 2259 from 2500 to get 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

The final result is 15412.31872509 with a remainder of 2.41e-07.