864638 divided by 84 
The aim is to understand the frequency of 84 in 864638.

Moving on to step 1:
84 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 84

Advancing to step 2:
84 can be fit into 86 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 84 away from 86, we end up with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 84

On to step 3:
When dividing 24 by 84, we get 0 with a remainder of 24.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 24 to get 24.
Append the next digit (6) from the dividend to 24 and continue with: 246 / 84

Moving on to step 4:
The number 84 fits into 246 2 times, leaving a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 102.0
Subtracting 168 from 246 leaves us with 78.
Take the next digit (3) from the dividend and append it to 78, then repeat: 783 / 84

On to step 5:
When dividing 783 by 84, we get 9 with a remainder of 27.
The next digit of our result is 9. 
Result so far: 1029.0
If we take 756 away from 783, we end up with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 84

Step 6:
If we divide 278 by 84, we get 3 and a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 10293.0
Subtract 252 from 278 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 7:
When dividing 260 by 84, we get 3 with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 10293.3
If we subtract 252 from 260, we 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.

Going ahead to step 8:
84 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 10293.3
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 9:
84 can be fit into 800 9 times, resulting in a remainder of 44.
The number 9 becomes the next digit in our result. 
Result so far: 10293.309
If we take 756 away from 800, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
If we divide 440 by 84, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 10293.3095
Subtract 420 from 440 to get 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:
200 divided by 84 is 2 with a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 10293.30952
Deduct 168 from 200 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 12:
If we divide 320 by 84, we get 3 and a remainder of 68.
Put 3 as the next digit of the answer. 
Result so far: 10293.309523
Subtract 252 from 320 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 13:
680 divided by 84 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 10293.3095238
Deduct 672 from 680 and we're left with 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 14:
80 divided by 84 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 10293.3095238
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

In conclusion, the division gives 10293.3095238 with a balance of 8e-08.