We're dividing 686611 by 84 
The aim is to understand the frequency of 84 in 686611.

Let's proceed to step 1:
If we divide 6 by 84, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 84

Let's proceed to step 2:
If we divide 68 by 84, we get 0 and a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 68, we end up with 68.
Take the next digit (6) from the dividend and append it to 68, then repeat: 686 / 84

Going ahead to step 3:
When dividing 686 by 84, we get 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 672 away from 686, we end up with 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 84

On to step 4:
If we divide 146 by 84, we get 1 and a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
If we take 84 away from 146, we end up with 62.
Include the next digit (1) from the dividend after 62, then repeat: 621 / 84

Let's proceed to step 5:
When dividing 621 by 84, we get 7 with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 817.0
If we subtract 588 from 621, we get 33.
Take the next digit (1) from the dividend and append it to 33, then repeat: 331 / 84

Going ahead to step 6:
84 goes into 331 3 times with a remainder of 79.
Record the quotient 3 as the next digit in the result. 
Result so far: 8173.0
Subtract 252 from 331 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 7:
84 goes into 790 9 times with a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 8173.9
Subtracting 756 from 790 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 8:
84 can be fit into 340 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 8173.94
Deduct 336 from 340 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.

Let's proceed to step 9:
84 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 8173.94
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
84 can be fit into 400 4 times, resulting in a remainder of 64.
Use 4 as the next digit of our solution. 
Result so far: 8173.9404
If we take 336 away from 400, 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.

Moving on to step 11:
The number 84 fits into 640 7 times, leaving a remainder of 52.
Put 7 as the next digit of the answer. 
Result so far: 8173.94047
Subtract 588 from 640 to get 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 12:
The number 84 fits into 520 6 times, leaving a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 8173.940476
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
84 can be fit into 160 1 times, resulting in a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 8173.9404761
Deduct 84 from 160 and we're left 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.

Let's proceed to step 14:
The number 84 fits into 760 9 times, leaving a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 8173.94047619
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.

The quotient of the division is 8173.94047619, and the remainder is 4e-09.