We're dividing 13872853 by 411 
The aim is to understand the frequency of 411 in 13872853.

Let's proceed to step 1:
If we divide 1 by 411, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 411

On to step 2:
411 can be fit into 13 0 times, resulting in a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 411

Going ahead to step 3:
138 divided by 411 is 0 with a remainder of 138.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 138 after subtracting 0 from 138.
Fetch the next digit (7) from the dividend, attach it to 138 and continue: 1387 / 411

Step 4:
If we divide 1387 by 411, we get 3 and a remainder of 154.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 1233 from 1387 and we're left with 154.
Include the next digit (2) from the dividend after 154, then repeat: 1542 / 411

Step 5:
1542 divided by 411 is 3 with a remainder of 309.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
Deduct 1233 from 1542 and we're left with 309.
Bring next digit (8) of the dividend behind the 309 and repeat the process: 3098 / 411

Let's proceed to step 6:
When dividing 3098 by 411, we get 7 with a remainder of 221.
The number 7 becomes the next digit in our result. 
Result so far: 337.0
If we subtract 2877 from 3098, we get 221.
Grab the next digit (5) from the dividend, add it to 221, then carry on: 2215 / 411

Let's proceed to step 7:
411 can be fit into 2215 5 times, resulting in a remainder of 160.
Write down 5 as next digit of the result. 
Result so far: 3375.0
Deduct 2055 from 2215 and we're left with 160.
Append the next digit (3) from the dividend to 160 and continue with: 1603 / 411

On to step 8:
1603 divided by 411 is 3 with a remainder of 370.
Put 3 as the next digit of the answer. 
Result so far: 33753.0
Subtract 1233 from 1603 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 9:
411 can be fit into 3700 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 33753.9
If we subtract 3699 from 3700, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
411 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 33753.9
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
The number 411 fits into 100 0 times, leaving a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 33753.9
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 33753.9 with a remaining 0.01.