861249 ÷ 23 
The aim is to understand the frequency of 23 in 861249.

Advancing to step 1:
23 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 23

Going ahead to step 2:
86 divided by 23 is 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 69 from 86 leaves us with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 23

Going ahead to step 3:
23 goes into 171 7 times with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtract 161 from 171 to get 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 23

On to step 4:
The number 23 fits into 102 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 374.0
Subtracting 92 from 102 leaves us with 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 23

Step 5:
23 goes into 104 4 times with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 3744.0
Subtracting 92 from 104 leaves us with 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 23

Advancing to step 6:
If we divide 129 by 23, we get 5 and a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 37445.0
Subtract 115 from 129 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.

On to step 7:
23 can be fit into 140 6 times, resulting in a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 37445.6
Subtract 138 from 140 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
The number 23 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 37445.6
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
200 divided by 23 is 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 37445.608
If we take 184 away from 200, we end up 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.

Let's proceed to step 10:
The number 23 fits into 160 6 times, leaving a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 37445.6086
Subtract 138 from 160 to get 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 11:
The number 23 fits into 220 9 times, leaving a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 37445.60869
Subtract 207 from 220 to get 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 12:
When dividing 130 by 23, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 37445.608695
Deduct 115 from 130 and we're left with 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 13:
150 divided by 23 is 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 37445.6086956
The remainder is 12 after subtracting 138 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
If we divide 120 by 23, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 37445.60869565
Subtract 115 from 120 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.

The final outcome is 37445.60869565, with a leftover of 5e-09.