We look at the division of 20623491 by 869 
Let's see how many times 869 fits into 20623491.

Moving on to step 1:
The number 869 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 869

Going ahead to step 2:
When dividing 20 by 869, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Bring next digit (6) of the dividend behind the 20 and repeat the process: 206 / 869

Moving on to step 3:
When dividing 206 by 869, we get 0 with a remainder of 206.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 206 after subtracting 0 from 206.
Fetch the next digit (2) from the dividend, attach it to 206 and continue: 2062 / 869

Going ahead to step 4:
869 goes into 2062 2 times with a remainder of 324.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 324 after subtracting 1738 from 2062.
Include the next digit (3) from the dividend after 324, then repeat: 3243 / 869

Going ahead to step 5:
869 goes into 3243 3 times with a remainder of 636.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Deduct 2607 from 3243 and we're left with 636.
Grab the next digit (4) from the dividend, add it to 636, then carry on: 6364 / 869

Step 6:
The number 869 fits into 6364 7 times, leaving a remainder of 281.
The number 7 becomes the next digit in our result. 
Result so far: 237.0
Subtract 6083 from 6364 to get 281.
Append the next digit (9) from the dividend to 281 and continue with: 2819 / 869

Going ahead to step 7:
869 goes into 2819 3 times with a remainder of 212.
The number 3 becomes the next digit in our result. 
Result so far: 2373.0
If we subtract 2607 from 2819, we get 212.
Grab the next digit (1) from the dividend, add it to 212, then carry on: 2121 / 869

Going ahead to step 8:
869 can be fit into 2121 2 times, resulting in a remainder of 383.
Put 2 as the next digit of the answer. 
Result so far: 23732.0
Deduct 1738 from 2121 and we're left with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Let's proceed to step 9:
When dividing 3830 by 869, we get 4 with a remainder of 354.
Record the quotient 4 as the next digit in the result. 
Result so far: 23732.4
If we subtract 3476 from 3830, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Step 10:
869 can be fit into 3540 4 times, resulting in a remainder of 64.
The next digit of our result is 4. 
Result so far: 23732.44
If we subtract 3476 from 3540, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 23732.44 with a remainder of 0.064.