We look at the division of 152151 by 45 
We want to divide 152151 by 45.

On to step 1:
1 divided by 45 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 45

On to step 2:
The number 45 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 45

Moving on to step 3:
If we divide 152 by 45, we get 3 and a remainder of 17.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 135 from 152 and we're left with 17.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 45

Going ahead to step 4:
45 can be fit into 171 3 times, resulting in a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Subtract 135 from 171 to get 36.
Grab the next digit (5) from the dividend, add it to 36, then carry on: 365 / 45

Advancing to step 5:
45 can be fit into 365 8 times, resulting in a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 338.0
Subtracting 360 from 365 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 45

Step 6:
When dividing 51 by 45, we get 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 3381.0
The remainder is 6 after subtracting 45 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
The number 45 fits into 60 1 times, leaving a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 3381.1
If we take 45 away from 60, 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.

Advancing to step 8:
The number 45 fits into 150 3 times, leaving a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 3381.13
If we take 135 away from 150, 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.

Advancing to step 9:
150 divided by 45 is 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 3381.133
Subtracting 135 from 150 leaves us 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.

The final outcome is 3381.133, with a leftover of 0.0015.