We look at the division of 157923 by 20 
We're looking to find how many times 20 goes into 157923.

Advancing to step 1:
The number 20 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 20

Let's proceed to step 2:
When dividing 15 by 20, we get 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 20

Advancing to step 3:
157 divided by 20 is 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 140 away from 157, we end up with 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 20

Moving on to step 4:
When dividing 179 by 20, we get 8 with a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
If we take 160 away from 179, we end up with 19.
Bring next digit (2) of the dividend behind the 19 and repeat the process: 192 / 20

Step 5:
20 goes into 192 9 times with a remainder of 12.
Write down 9 as next digit of the result. 
Result so far: 789.0
The remainder is 12 after subtracting 180 from 192.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 20

Step 6:
The number 20 fits into 123 6 times, leaving a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 7896.0
Subtract 120 from 123 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 20, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 7896.1
Subtracting 20 from 30 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 7896.15
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:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 7896.15
Deduct 0 from 0 and we're left 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 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7896.15
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.

The final outcome is 7896.15, with a leftover of 0.0.