73533031 divided by 686 
The aim is to understand the frequency of 686 in 73533031.

Advancing to step 1:
If we divide 7 by 686, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 686

Advancing to step 2:
The number 686 fits into 73 0 times, leaving a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Grab the next digit (5) from the dividend, add it to 73, then carry on: 735 / 686

Moving on to step 3:
If we divide 735 by 686, we get 1 and a remainder of 49.
The next digit of our result is 1. 
Result so far: 1.0
If we take 686 away from 735, we end up with 49.
Bring next digit (3) of the dividend behind the 49 and repeat the process: 493 / 686

On to step 4:
686 goes into 493 0 times with a remainder of 493.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 493, we end up with 493.
Take the next digit (3) from the dividend and append it to 493, then repeat: 4933 / 686

Advancing to step 5:
4933 divided by 686 is 7 with a remainder of 131.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Subtract 4802 from 4933 to get 131.
Grab the next digit (0) from the dividend, add it to 131, then carry on: 1310 / 686

Step 6:
686 goes into 1310 1 times with a remainder of 624.
Write down 1 as next digit of the result. 
Result so far: 1071.0
Deduct 686 from 1310 and we're left with 624.
Fetch the next digit (3) from the dividend, attach it to 624 and continue: 6243 / 686

Moving on to step 7:
6243 divided by 686 is 9 with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 10719.0
Subtract 6174 from 6243 to get 69.
Bring next digit (1) of the dividend behind the 69 and repeat the process: 691 / 686

Moving on to step 8:
691 divided by 686 is 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 107191.0
Subtract 686 from 691 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
When dividing 50 by 686, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 107191.0
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
When dividing 500 by 686, we get 0 with a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 107191.0
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The quotient of the division is 107191.0, and the remainder is 0.5.