We're dividing 83573717 by 287 
The aim is to understand the frequency of 287 in 83573717.

Moving on to step 1:
The number 287 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 287

Going ahead to step 2:
287 goes into 83 0 times with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Append the next digit (5) from the dividend to 83 and continue with: 835 / 287

Step 3:
287 goes into 835 2 times with a remainder of 261.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 574 away from 835, we end up with 261.
Take the next digit (7) from the dividend and append it to 261, then repeat: 2617 / 287

Moving on to step 4:
The number 287 fits into 2617 9 times, leaving a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Deduct 2583 from 2617 and we're left with 34.
Bring next digit (3) of the dividend behind the 34 and repeat the process: 343 / 287

Moving on to step 5:
343 divided by 287 is 1 with a remainder of 56.
Record the quotient 1 as the next digit in the result. 
Result so far: 291.0
Subtracting 287 from 343 leaves us with 56.
Include the next digit (7) from the dividend after 56, then repeat: 567 / 287

Let's proceed to step 6:
The number 287 fits into 567 1 times, leaving a remainder of 280.
Use 1 as the next digit of our solution. 
Result so far: 2911.0
Deduct 287 from 567 and we're left with 280.
Append the next digit (1) from the dividend to 280 and continue with: 2801 / 287

Moving on to step 7:
287 can be fit into 2801 9 times, resulting in a remainder of 218.
Record the quotient 9 as the next digit in the result. 
Result so far: 29119.0
The remainder is 218 after subtracting 2583 from 2801.
Take the next digit (7) from the dividend and append it to 218, then repeat: 2187 / 287

Step 8:
2187 divided by 287 is 7 with a remainder of 178.
Use 7 as the next digit of our solution. 
Result so far: 291197.0
Subtracting 2009 from 2187 leaves us with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 9:
If we divide 1780 by 287, we get 6 and a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 291197.6
If we subtract 1722 from 1780, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
580 divided by 287 is 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 291197.62
Subtracting 574 from 580 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 11:
If we divide 60 by 287, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 291197.62
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 12:
When dividing 600 by 287, we get 2 with a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 291197.6202
If we take 574 away from 600, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 13:
287 can be fit into 260 0 times, resulting in a remainder of 260.
Record the quotient 0 as the next digit in the result. 
Result so far: 291197.6202
If we take 0 away from 260, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 14:
287 goes into 2600 9 times with a remainder of 17.
The next digit of our result is 9. 
Result so far: 291197.620209
Deduct 2583 from 2600 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 15:
If we divide 170 by 287, we get 0 and a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 291197.620209
If we subtract 0 from 170, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 16:
The number 287 fits into 1700 5 times, leaving a remainder of 265.
The number 5 becomes the next digit in our result. 
Result so far: 291197.62020905
The remainder is 265 after subtracting 1435 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final outcome is 291197.62020905, with a leftover of 2.65e-07.