We look at the division of 135315 by 75 
We want to figure out the number of times 135315 can be divided by 75.

On to step 1:
If we divide 1 by 75, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 75

Moving on to step 2:
75 can be fit into 13 0 times, resulting in a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 75

Going ahead to step 3:
When dividing 135 by 75, we get 1 with a remainder of 60.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 75 from 135 and we're left with 60.
Append the next digit (3) from the dividend to 60 and continue with: 603 / 75

Let's proceed to step 4:
If we divide 603 by 75, we get 8 and a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 600 from 603 leaves us with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 75

Let's proceed to step 5:
75 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 180.0
If we take 0 away from 31, we end up with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 75

Advancing to step 6:
75 can be fit into 315 4 times, resulting in a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 1804.0
If we take 300 away from 315, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
The number 75 fits into 150 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 1804.2
Deduct 150 from 150 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.

Advancing to step 8:
If we divide 0 by 75, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 1804.2
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.

On to step 9:
The number 75 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1804.2
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.

Our division results in 1804.2 with a remaining 0.0.