392146 divided by 45 
Let's see how many times 45 fits into 392146.

Advancing to step 1:
The number 45 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 45

Moving on to step 2:
45 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 45

Advancing to step 3:
When dividing 392 by 45, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 360 from 392, we get 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 45

Step 4:
45 can be fit into 321 7 times, resulting in a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Deduct 315 from 321 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 45

Advancing to step 5:
45 can be fit into 64 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 871.0
If we take 45 away from 64, we end up with 19.
Bring next digit (6) of the dividend behind the 19 and repeat the process: 196 / 45

On to step 6:
If we divide 196 by 45, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 8714.0
The remainder is 16 after subtracting 180 from 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
45 can be fit into 160 3 times, resulting in a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 8714.3
Subtract 135 from 160 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 8:
The number 45 fits into 250 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 8714.35
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
The number 45 fits into 250 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 8714.355
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 8714.355 with a remainder of 0.0025.