We look at the division of 211225 by 20 
We want to figure out the number of times 211225 can be divided by 20.

On to step 1:
2 divided by 20 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 20

Advancing to step 2:
20 goes into 21 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 20 from 21, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 20

Let's proceed to step 3:
20 can be fit into 11 0 times, resulting in a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 11, we get 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 20

Advancing to step 4:
112 divided by 20 is 5 with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 105.0
If we take 100 away from 112, we end up with 12.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 20

Advancing to step 5:
When dividing 122 by 20, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 1056.0
Subtract 120 from 122 to get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 20

On to step 6:
When dividing 25 by 20, we get 1 with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 10561.0
Subtract 20 from 25 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
50 divided by 20 is 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 10561.2
The remainder is 10 after subtracting 40 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead 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: 10561.25
If we subtract 100 from 100, we 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:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10561.25
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.

Going ahead to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10561.25
If we subtract 0 from 0, we 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.

Our division results in 10561.25 with a remaining 0.0.