We divide 798924 by 20
We're looking to find how many times 20 goes into 798924.

Step 1:
The number 20 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 20

Moving on to step 2:
79 divided by 20 is 3 with a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 60 from 79 and we're left with 19.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 20

Step 3:
20 goes into 198 9 times with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 180 from 198, we get 18.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 20

Let's proceed to step 4:
When dividing 189 by 20, we get 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 399.0
Subtract 180 from 189 to get 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 20

Let's proceed to step 5:
When dividing 92 by 20, we get 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 3994.0
Deduct 80 from 92 and we're left with 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 20

Going ahead to step 6:
124 divided by 20 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 39946.0
If we take 120 away from 124, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
20 goes into 40 2 times with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 39946.2
If we subtract 40 from 40, 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.

Let's proceed to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 39946.2
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.

Let's proceed to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 39946.2
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 outcome is 39946.2, with a leftover of 0.0.