We're dividing 806243 by 57 
The aim is to understand the frequency of 57 in 806243.

On to step 1:
If we divide 8 by 57, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 57

Going ahead to step 2:
80 divided by 57 is 1 with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 57 from 80 leaves us with 23.
Fetch the next digit (6) from the dividend, attach it to 23 and continue: 236 / 57

Going ahead to step 3:
236 divided by 57 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 14.0
If we take 228 away from 236, we end up with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 57

On to step 4:
57 can be fit into 82 1 times, resulting in a remainder of 25.
The next digit of our result is 1. 
Result so far: 141.0
Deduct 57 from 82 and we're left with 25.
Grab the next digit (4) from the dividend, add it to 25, then carry on: 254 / 57

Moving on to step 5:
254 divided by 57 is 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 1414.0
Deduct 228 from 254 and we're left with 26.
Bring next digit (3) of the dividend behind the 26 and repeat the process: 263 / 57

Advancing to step 6:
57 goes into 263 4 times with a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 14144.0
Subtract 228 from 263 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 7:
57 can be fit into 350 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 14144.6
Subtract 342 from 350 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
The number 57 fits into 80 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 14144.61
If we subtract 57 from 80, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 9:
57 goes into 230 4 times with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 14144.614
Subtract 228 from 230 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
If we divide 20 by 57, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 14144.614
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
If we divide 200 by 57, we get 3 and a remainder of 29.
Put 3 as the next digit of the answer. 
Result so far: 14144.61403
Subtract 171 from 200 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 12:
If we divide 290 by 57, we get 5 and a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 14144.614035
The remainder is 5 after subtracting 285 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
57 goes into 50 0 times with a remainder of 50.
The next digit of our result is 0. 
Result so far: 14144.614035
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
If we divide 500 by 57, we get 8 and a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 14144.61403508
If we subtract 456 from 500, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

After the division, we end up with 14144.61403508 and a remainder of 4.4e-08.