961591 ÷ 20 
We want to divide 961591 by 20.

Moving on to step 1:
When dividing 9 by 20, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 20

Step 2:
20 can be fit into 96 4 times, resulting in a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 80 away from 96, we end up with 16.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 20

Moving on to step 3:
20 goes into 161 8 times with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 48.0
Deduct 160 from 161 and we're left with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 20

Going ahead to step 4:
20 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 480.0
Subtracting 0 from 15 leaves us with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 20

Let's proceed to step 5:
20 goes into 159 7 times with a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 4807.0
If we take 140 away from 159, we end up with 19.
Fetch the next digit (1) from the dividend, attach it to 19 and continue: 191 / 20

Going ahead to step 6:
When dividing 191 by 20, we get 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 48079.0
If we subtract 180 from 191, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
20 can be fit into 110 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 48079.5
Deduct 100 from 110 and we're left 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.

Advancing to step 8:
100 divided by 20 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 48079.55
The remainder is 0 after subtracting 100 from 100.
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 48079.55 and a remainder of 0.0.