253425 divided by 12 
We want to divide 253425 by 12.

Going ahead to step 1:
2 divided by 12 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 12

Step 2:
When dividing 25 by 12, we get 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 24 from 25 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 12

Step 3:
If we divide 13 by 12, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 12 away from 13, we end up with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 12

Let's proceed to step 4:
14 divided by 12 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 211.0
If we subtract 12 from 14, we get 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 12

Let's proceed to step 5:
12 can be fit into 22 1 times, resulting in a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 2111.0
If we take 12 away from 22, we end up with 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 12

Advancing to step 6:
If we divide 105 by 12, we get 8 and a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 21118.0
If we subtract 96 from 105, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
90 divided by 12 is 7 with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 21118.7
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
If we divide 60 by 12, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 21118.75
The remainder is 0 after subtracting 60 from 60.
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:
0 divided by 12 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21118.75
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.

Step 10:
12 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21118.75
Subtract 0 from 0 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.

The final outcome is 21118.75, with a leftover of 0.0.