We're dividing 988601 by 23 
The aim is to understand the frequency of 23 in 988601.

Step 1:
The number 23 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 23

On to step 2:
The number 23 fits into 98 4 times, leaving a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 92 away from 98, we end up with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 23

Advancing to step 3:
23 can be fit into 68 2 times, resulting in a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Subtracting 46 from 68 leaves us with 22.
Fetch the next digit (6) from the dividend, attach it to 22 and continue: 226 / 23

Advancing to step 4:
The number 23 fits into 226 9 times, leaving a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 429.0
Subtracting 207 from 226 leaves us with 19.
Include the next digit (0) from the dividend after 19, then repeat: 190 / 23

Moving on to step 5:
If we divide 190 by 23, we get 8 and a remainder of 6.
The next digit of our result is 8. 
Result so far: 4298.0
If we take 184 away from 190, we end up with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 23

On to step 6:
If we divide 61 by 23, we get 2 and a remainder of 15.
Write down 2 as next digit of the result. 
Result so far: 42982.0
Subtract 46 from 61 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
150 divided by 23 is 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 42982.6
Deduct 138 from 150 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
The number 23 fits into 120 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 42982.65
If we subtract 115 from 120, we 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:
The number 23 fits into 50 2 times, leaving a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 42982.652
Subtract 46 from 50 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
40 divided by 23 is 1 with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 42982.6521
Deduct 23 from 40 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
170 divided by 23 is 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 42982.65217
Subtracting 161 from 170 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 12:
If we divide 90 by 23, we get 3 and a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 42982.652173
If we subtract 69 from 90, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 13:
The number 23 fits into 210 9 times, leaving a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 42982.6521739
Subtract 207 from 210 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
30 divided by 23 is 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 42982.65217391
Subtracting 23 from 30 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 42982.65217391 with a remaining 7e-09.