We look at the division of 64013652 by 843 
The aim is to understand the frequency of 843 in 64013652.

On to step 1:
843 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 843

Going ahead to step 2:
843 goes into 64 0 times with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (0) from the dividend after 64, then repeat: 640 / 843

Step 3:
If we divide 640 by 843, we get 0 and a remainder of 640.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 640 and we're left with 640.
Fetch the next digit (1) from the dividend, attach it to 640 and continue: 6401 / 843

Let's proceed to step 4:
If we divide 6401 by 843, we get 7 and a remainder of 500.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 5901 from 6401, we get 500.
Bring next digit (3) of the dividend behind the 500 and repeat the process: 5003 / 843

Let's proceed to step 5:
843 goes into 5003 5 times with a remainder of 788.
Record the quotient 5 as the next digit in the result. 
Result so far: 75.0
Deduct 4215 from 5003 and we're left with 788.
Take the next digit (6) from the dividend and append it to 788, then repeat: 7886 / 843

Step 6:
The number 843 fits into 7886 9 times, leaving a remainder of 299.
Use 9 as the next digit of our solution. 
Result so far: 759.0
Subtracting 7587 from 7886 leaves us with 299.
Take the next digit (5) from the dividend and append it to 299, then repeat: 2995 / 843

Going ahead to step 7:
843 can be fit into 2995 3 times, resulting in a remainder of 466.
Put 3 as the next digit of the answer. 
Result so far: 7593.0
The remainder is 466 after subtracting 2529 from 2995.
Fetch the next digit (2) from the dividend, attach it to 466 and continue: 4662 / 843

Let's proceed to step 8:
4662 divided by 843 is 5 with a remainder of 447.
Put 5 as the next digit of the answer. 
Result so far: 75935.0
If we subtract 4215 from 4662, we get 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Moving on to step 9:
If we divide 4470 by 843, we get 5 and a remainder of 255.
Write down 5 as next digit of the result. 
Result so far: 75935.5
Subtracting 4215 from 4470 leaves us with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 10:
If we divide 2550 by 843, we get 3 and a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 75935.53
Subtract 2529 from 2550 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 11:
210 divided by 843 is 0 with a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 75935.53
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 12:
843 can be fit into 2100 2 times, resulting in a remainder of 414.
Record the quotient 2 as the next digit in the result. 
Result so far: 75935.5302
Subtract 1686 from 2100 to get 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Going ahead to step 13:
If we divide 4140 by 843, we get 4 and a remainder of 768.
Write down 4 as next digit of the result. 
Result so far: 75935.53024
Subtracting 3372 from 4140 leaves us with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Moving on to step 14:
843 can be fit into 7680 9 times, resulting in a remainder of 93.
Put 9 as the next digit of the answer. 
Result so far: 75935.530249
Deduct 7587 from 7680 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 15:
930 divided by 843 is 1 with a remainder of 87.
Put 1 as the next digit of the answer. 
Result so far: 75935.5302491
Deduct 843 from 930 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 16:
843 goes into 870 1 times with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 75935.53024911
If we subtract 843 from 870, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

After the division, we end up with 75935.53024911 and a remainder of 2.7e-08.