256366 divided by 84 
The aim is to understand the frequency of 84 in 256366.

On to step 1:
The number 84 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 84

On to step 2:
If we divide 25 by 84, we get 0 and a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 84

Step 3:
84 can be fit into 256 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 3.0
If we take 252 away from 256, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 84

Advancing to step 4:
The number 84 fits into 43 0 times, leaving a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 43 and we're left with 43.
Append the next digit (6) from the dividend to 43 and continue with: 436 / 84

On to step 5:
If we divide 436 by 84, we get 5 and a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 305.0
The remainder is 16 after subtracting 420 from 436.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 84

Advancing to step 6:
The number 84 fits into 166 1 times, leaving a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 3051.0
Subtract 84 from 166 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 7:
820 divided by 84 is 9 with a remainder of 64.
Record the quotient 9 as the next digit in the result. 
Result so far: 3051.9
If we take 756 away from 820, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 8:
84 goes into 640 7 times with a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 3051.97
Subtracting 588 from 640 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 9:
When dividing 520 by 84, we get 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 3051.976
Subtracting 504 from 520 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
84 goes into 160 1 times with a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 3051.9761
Subtracting 84 from 160 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
If we divide 760 by 84, we get 9 and a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 3051.97619
Deduct 756 from 760 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
When dividing 40 by 84, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 3051.97619
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 13:
400 divided by 84 is 4 with a remainder of 64.
The next digit of our result is 4. 
Result so far: 3051.9761904
Deduct 336 from 400 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
The number 84 fits into 640 7 times, leaving a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 3051.97619047
Deduct 588 from 640 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Our division results in 3051.97619047 with a remaining 5.2e-08.