We look at the division of 122152 by 45 
Let's see how many times 45 fits into 122152.

On to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 45

Moving on to step 2:
The number 45 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 45

On to step 3:
The number 45 fits into 122 2 times, leaving a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 32 after subtracting 90 from 122.
Fetch the next digit (1) from the dividend, attach it to 32 and continue: 321 / 45

On to step 4:
45 goes into 321 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we take 315 away from 321, we end up with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 45

Step 5:
When dividing 65 by 45, we get 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 271.0
If we subtract 45 from 65, we get 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 45

Advancing to step 6:
When dividing 202 by 45, we get 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 2714.0
If we take 180 away from 202, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
220 divided by 45 is 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 2714.4
The remainder is 40 after subtracting 180 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
400 divided by 45 is 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 2714.48
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
If we divide 400 by 45, we get 8 and a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 2714.488
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 2714.488 with a remaining 0.004.