We're dividing 437583 by 84 
The aim is to understand the frequency of 84 in 437583.

Advancing to step 1:
84 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 84

Let's proceed to step 2:
If we divide 43 by 84, we get 0 and a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Grab the next digit (7) from the dividend, add it to 43, then carry on: 437 / 84

Going ahead to step 3:
84 goes into 437 5 times with a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 420 from 437 and we're left with 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 84

Advancing to step 4:
When dividing 175 by 84, we get 2 with a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
Subtract 168 from 175 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 84

Step 5:
The number 84 fits into 78 0 times, leaving a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 520.0
If we subtract 0 from 78, we get 78.
Bring next digit (3) of the dividend behind the 78 and repeat the process: 783 / 84

Moving on to step 6:
When dividing 783 by 84, we get 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 5209.0
If we subtract 756 from 783, 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.

Advancing to step 7:
When dividing 270 by 84, we get 3 with a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 5209.3
If we subtract 252 from 270, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 8:
The number 84 fits into 180 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 5209.32
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
The number 84 fits into 120 1 times, leaving a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 5209.321
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 10:
If we divide 360 by 84, we get 4 and a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 5209.3214
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
84 can be fit into 240 2 times, resulting in a remainder of 72.
The next digit of our result is 2. 
Result so far: 5209.32142
Subtracting 168 from 240 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
When dividing 720 by 84, we get 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 5209.321428
Deduct 672 from 720 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 13:
When dividing 480 by 84, we get 5 with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 5209.3214285
If we subtract 420 from 480, 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.

On to step 14:
When dividing 600 by 84, we get 7 with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 5209.32142857
Deduct 588 from 600 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 5209.32142857 and a remainder of 1.2e-08.