124869 ÷ 20 
We want to figure out the number of times 124869 can be divided by 20.

Moving on to step 1:
20 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 20

Advancing to step 2:
If we divide 12 by 20, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 20

Moving on to step 3:
If we divide 124 by 20, we get 6 and a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 120 from 124 to get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 20

Going ahead to step 4:
20 can be fit into 48 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 40 from 48, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 20

Moving on to step 5:
20 goes into 86 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 624.0
The remainder is 6 after subtracting 80 from 86.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 20

Advancing to step 6:
20 can be fit into 69 3 times, resulting in a remainder of 9.
The next digit of our result is 3. 
Result so far: 6243.0
Deduct 60 from 69 and we're left 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.

Moving on to step 7:
90 divided by 20 is 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 6243.4
If we subtract 80 from 90, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 6243.45
Subtract 100 from 100 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 6243.45
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6243.45
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 6243.45 with a remainder of 0.0.