We're dividing 43863565 by 217 
The aim is to understand the frequency of 217 in 43863565.

Going ahead to step 1:
4 divided by 217 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 217

Advancing to step 2:
If we divide 43 by 217, we get 0 and a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Grab the next digit (8) from the dividend, add it to 43, then carry on: 438 / 217

Step 3:
217 can be fit into 438 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 434 away from 438, we end up with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 217

Advancing to step 4:
If we divide 46 by 217, we get 0 and a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 20.0
The remainder is 46 after subtracting 0 from 46.
Fetch the next digit (3) from the dividend, attach it to 46 and continue: 463 / 217

Moving on to step 5:
The number 217 fits into 463 2 times, leaving a remainder of 29.
The next digit of our result is 2. 
Result so far: 202.0
Subtract 434 from 463 to get 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 217

On to step 6:
295 divided by 217 is 1 with a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 2021.0
If we take 217 away from 295, we end up with 78.
Fetch the next digit (6) from the dividend, attach it to 78 and continue: 786 / 217

On to step 7:
217 can be fit into 786 3 times, resulting in a remainder of 135.
The next digit of our result is 3. 
Result so far: 20213.0
If we subtract 651 from 786, we get 135.
Include the next digit (5) from the dividend after 135, then repeat: 1355 / 217

Let's proceed to step 8:
217 can be fit into 1355 6 times, resulting in a remainder of 53.
Put 6 as the next digit of the answer. 
Result so far: 202136.0
Subtract 1302 from 1355 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 9:
217 goes into 530 2 times with a remainder of 96.
Put 2 as the next digit of the answer. 
Result so far: 202136.2
Deduct 434 from 530 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 10:
217 goes into 960 4 times with a remainder of 92.
The number 4 becomes the next digit in our result. 
Result so far: 202136.24
Deduct 868 from 960 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 11:
217 goes into 920 4 times with a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 202136.244
If we take 868 away from 920, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Our division results in 202136.244 with a remaining 0.0052.