We're dividing 667870 by 23 
The aim is to understand the frequency of 23 in 667870.

Going ahead to step 1:
When dividing 6 by 23, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 23

Moving on to step 2:
66 divided by 23 is 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 46 from 66 to get 20.
Take the next digit (7) from the dividend and append it to 20, then repeat: 207 / 23

On to step 3:
The number 23 fits into 207 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 29.0
The remainder is 0 after subtracting 207 from 207.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 23

Step 4:
The number 23 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 290.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 23

On to step 5:
23 can be fit into 87 3 times, resulting in a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 2903.0
Subtracting 69 from 87 leaves us with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 23

Moving on to step 6:
If we divide 180 by 23, we get 7 and a remainder of 19.
The next digit of our result is 7. 
Result so far: 29037.0
If we take 161 away from 180, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
The number 23 fits into 190 8 times, leaving a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 29037.8
Deduct 184 from 190 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
23 can be fit into 60 2 times, resulting in a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 29037.82
Subtract 46 from 60 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
If we divide 140 by 23, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 29037.826
If we take 138 away from 140, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 10:
The number 23 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 29037.826
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
The number 23 fits into 200 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 29037.82608
Subtracting 184 from 200 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 12:
The number 23 fits into 160 6 times, leaving a remainder of 22.
The next digit of our result is 6. 
Result so far: 29037.826086
Deduct 138 from 160 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 13:
23 goes into 220 9 times with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 29037.8260869
If we take 207 away from 220, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 14:
23 goes into 130 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 29037.82608695
The remainder is 15 after subtracting 115 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 29037.82608695 with a remainder of 1.5e-08.