90010368 ÷ 686 
The aim is to understand the frequency of 686 in 90010368.

On to step 1:
9 divided by 686 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 686

Step 2:
The number 686 fits into 90 0 times, leaving a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Fetch the next digit (0) from the dividend, attach it to 90 and continue: 900 / 686

Advancing to step 3:
The number 686 fits into 900 1 times, leaving a remainder of 214.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 214 after subtracting 686 from 900.
Take the next digit (1) from the dividend and append it to 214, then repeat: 2141 / 686

Step 4:
2141 divided by 686 is 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 2058 from 2141 to get 83.
Append the next digit (0) from the dividend to 83 and continue with: 830 / 686

Going ahead to step 5:
The number 686 fits into 830 1 times, leaving a remainder of 144.
Record the quotient 1 as the next digit in the result. 
Result so far: 131.0
If we take 686 away from 830, we end up with 144.
Take the next digit (3) from the dividend and append it to 144, then repeat: 1443 / 686

On to step 6:
The number 686 fits into 1443 2 times, leaving a remainder of 71.
Put 2 as the next digit of the answer. 
Result so far: 1312.0
The remainder is 71 after subtracting 1372 from 1443.
Append the next digit (6) from the dividend to 71 and continue with: 716 / 686

On to step 7:
When dividing 716 by 686, we get 1 with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 13121.0
If we take 686 away from 716, we end up with 30.
Append the next digit (8) from the dividend to 30 and continue with: 308 / 686

Going ahead to step 8:
686 goes into 308 0 times with a remainder of 308.
The next digit of our result is 0. 
Result so far: 131210.0
Subtracting 0 from 308 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 9:
The number 686 fits into 3080 4 times, leaving a remainder of 336.
Record the quotient 4 as the next digit in the result. 
Result so far: 131210.4
Subtract 2744 from 3080 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Moving on to step 10:
If we divide 3360 by 686, we get 4 and a remainder of 616.
Put 4 as the next digit of the answer. 
Result so far: 131210.44
If we take 2744 away from 3360, we end up with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Our division results in 131210.44 with a remaining 0.616.