We're dividing 149458 by 45 
We want to divide 149458 by 45.

Advancing to step 1:
If we divide 1 by 45, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 45

Going ahead to step 2:
When dividing 14 by 45, we get 0 with a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 45

On to step 3:
149 divided by 45 is 3 with a remainder of 14.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 135 from 149 and we're left with 14.
Grab the next digit (4) from the dividend, add it to 14, then carry on: 144 / 45

Step 4:
144 divided by 45 is 3 with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 33.0
If we subtract 135 from 144, we get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 45

On to step 5:
When dividing 95 by 45, we get 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 332.0
Subtract 90 from 95 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 45

On to step 6:
45 can be fit into 58 1 times, resulting in a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 3321.0
Subtract 45 from 58 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
130 divided by 45 is 2 with a remainder of 40.
The next digit of our result is 2. 
Result so far: 3321.2
If we take 90 away from 130, we end up with 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 8:
The number 45 fits into 400 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 3321.28
If we take 360 away from 400, we end up with 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:
400 divided by 45 is 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 3321.288
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.

Our division results in 3321.288 with a remaining 0.004.