157959 ÷ 20 
We're looking to find how many times 20 goes into 157959.

Advancing to step 1:
20 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 20

Step 2:
If we divide 15 by 20, we get 0 and a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 20

Going ahead to step 3:
When dividing 157 by 20, we get 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 140 from 157 leaves us with 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 20

Let's proceed to step 4:
179 divided by 20 is 8 with a remainder of 19.
The next digit of our result is 8. 
Result so far: 78.0
If we subtract 160 from 179, we get 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 20

Step 5:
20 can be fit into 195 9 times, resulting in a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 789.0
If we subtract 180 from 195, we get 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 20

Let's proceed to step 6:
20 goes into 159 7 times with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 7897.0
Subtracting 140 from 159 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
If we divide 190 by 20, we get 9 and a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 7897.9
The remainder is 10 after subtracting 180 from 190.
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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 7897.95
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.

Let's proceed to step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 7897.95
If we take 0 away from 0, we end up 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.

On to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7897.95
If we take 0 away from 0, we end up 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.

Our division results in 7897.95 with a remaining 0.0.