Let's divide 689415 by 84
The aim is to understand the frequency of 84 in 689415.

Step 1:
6 divided by 84 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 84

Step 2:
68 divided by 84 is 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Append the next digit (9) from the dividend to 68 and continue with: 689 / 84

Step 3:
The number 84 fits into 689 8 times, leaving a remainder of 17.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 672 from 689 leaves us with 17.
Append the next digit (4) from the dividend to 17 and continue with: 174 / 84

Going ahead to step 4:
The number 84 fits into 174 2 times, leaving a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
If we take 168 away from 174, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 84

Step 5:
If we divide 61 by 84, we get 0 and a remainder of 61.
The next digit of our result is 0. 
Result so far: 820.0
Subtract 0 from 61 to get 61.
Include the next digit (5) from the dividend after 61, then repeat: 615 / 84

Let's proceed to step 6:
The number 84 fits into 615 7 times, leaving a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 8207.0
Deduct 588 from 615 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 7:
If we divide 270 by 84, we get 3 and a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 8207.3
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
180 divided by 84 is 2 with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 8207.32
Subtract 168 from 180 to get 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:
84 can be fit into 120 1 times, resulting in a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 8207.321
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 10:
360 divided by 84 is 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 8207.3214
Deduct 336 from 360 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
84 goes into 240 2 times with a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 8207.32142
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.

Let's proceed to step 12:
84 can be fit into 720 8 times, resulting in a remainder of 48.
The next digit of our result is 8. 
Result so far: 8207.321428
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.

Let's proceed to step 13:
480 divided by 84 is 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 8207.3214285
Subtract 420 from 480 to 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.

Let's proceed to step 14:
600 divided by 84 is 7 with a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 8207.32142857
Subtract 588 from 600 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 8207.32142857, with a leftover of 1.2e-08.