146249 ÷ 45 
We're looking to find how many times 45 goes into 146249.

Step 1:
When dividing 1 by 45, we get 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.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 45

Moving on to step 2:
When dividing 14 by 45, we get 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 45

Step 3:
The number 45 fits into 146 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 135 away from 146, we end up with 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 45

Going ahead to step 4:
If we divide 112 by 45, we get 2 and a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Deduct 90 from 112 and we're left with 22.
Grab the next digit (4) from the dividend, add it to 22, then carry on: 224 / 45

Going ahead to step 5:
45 can be fit into 224 4 times, resulting in a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 324.0
If we take 180 away from 224, we end up with 44.
Grab the next digit (9) from the dividend, add it to 44, then carry on: 449 / 45

Going ahead to step 6:
When dividing 449 by 45, we get 9 with a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 3249.0
Subtract 405 from 449 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
If we divide 440 by 45, we get 9 and a remainder of 35.
The next digit of our result is 9. 
Result so far: 3249.9
The remainder is 35 after subtracting 405 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 8:
350 divided by 45 is 7 with a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 3249.97
Subtract 315 from 350 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
45 goes into 350 7 times with a remainder of 35.
Put 7 as the next digit of the answer. 
Result so far: 3249.977
Subtracting 315 from 350 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 3249.977 and a remainder of 0.0035.