We're dividing 162861 by 20 
We want to divide 162861 by 20.

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
Deduct 0 from 1 and we're left with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 20

Moving on to step 2:
16 divided by 20 is 0 with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Append the next digit (2) from the dividend to 16 and continue with: 162 / 20

Let's proceed to step 3:
When dividing 162 by 20, we get 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 2 after subtracting 160 from 162.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 20

Let's proceed to step 4:
If we divide 28 by 20, we get 1 and a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 81.0
Subtracting 20 from 28 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 20

On to step 5:
When dividing 86 by 20, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 814.0
If we take 80 away from 86, we end up with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 20

Advancing to step 6:
When dividing 61 by 20, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 8143.0
If we subtract 60 from 61, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
20 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8143.0
Subtracting 0 from 10 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.

Moving on to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 8143.05
Deduct 100 from 100 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.

Moving on to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8143.05
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.

Step 10:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8143.05
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.

The final result is 8143.05 with a remainder of 0.0.