We're dividing 211591 by 18 
We're looking to find how many times 18 goes into 211591.

Advancing to step 1:
The number 18 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 18

On to step 2:
18 can be fit into 21 1 times, resulting in a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 18 from 21 and we're left with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 18

Step 3:
18 goes into 31 1 times with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 18 from 31, we get 13.
Include the next digit (5) from the dividend after 13, then repeat: 135 / 18

Let's proceed to step 4:
If we divide 135 by 18, we get 7 and a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 117.0
Subtract 126 from 135 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 18

Let's proceed to step 5:
When dividing 99 by 18, we get 5 with a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 1175.0
Subtract 90 from 99 to get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 18

On to step 6:
91 divided by 18 is 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 11755.0
Subtract 90 from 91 to 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.

Going ahead to step 7:
18 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 11755.0
Subtract 0 from 10 to get 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:
When dividing 100 by 18, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 11755.05
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
18 goes into 100 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 11755.055
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 11755.055, with a leftover of 0.001.