245800 ÷ 20 
We want to figure out the number of times 245800 can be divided by 20.

Let's proceed to step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 20

Going ahead to step 2:
24 divided by 20 is 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 4 after subtracting 20 from 24.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 20

Step 3:
20 can be fit into 45 2 times, resulting in a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 40 from 45 and we're left with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 20

Let's proceed to step 4:
When dividing 58 by 20, we get 2 with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
Subtracting 40 from 58 leaves us with 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 20

Advancing to step 5:
20 goes into 180 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 1229.0
The remainder is 0 after subtracting 180 from 180.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 20

Let's proceed to step 6:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 12290.0
Subtract 0 from 0 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.

Step 7:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 12290.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12290.0
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.

After the division, we end up with 12290.0 and a remainder of 0.0.