393509 ÷ 46 
Our goal is to divide 393509 by 46.

Going ahead to step 1:
The number 46 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 46

Let's proceed to step 2:
46 can be fit into 39 0 times, resulting in a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 46

Going ahead to step 3:
When dividing 393 by 46, we get 8 with a remainder of 25.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 368 from 393, we get 25.
Append the next digit (5) from the dividend to 25 and continue with: 255 / 46

Let's proceed to step 4:
If we divide 255 by 46, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 85.0
The remainder is 25 after subtracting 230 from 255.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 46

Advancing to step 5:
The number 46 fits into 250 5 times, leaving a remainder of 20.
The next digit of our result is 5. 
Result so far: 855.0
Subtracting 230 from 250 leaves us with 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 46

Advancing to step 6:
46 goes into 209 4 times with a remainder of 25.
Record the quotient 4 as the next digit in the result. 
Result so far: 8554.0
If we subtract 184 from 209, we 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.

On to step 7:
46 can be fit into 250 5 times, resulting in a remainder of 20.
The next digit of our result is 5. 
Result so far: 8554.5
Subtracting 230 from 250 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
If we divide 200 by 46, we get 4 and a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 8554.54
The remainder is 16 after subtracting 184 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
46 can be fit into 160 3 times, resulting in a remainder of 22.
The next digit of our result is 3. 
Result so far: 8554.543
The remainder is 22 after subtracting 138 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 10:
46 can be fit into 220 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 8554.5434
The remainder is 36 after subtracting 184 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 11:
46 goes into 360 7 times with a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 8554.54347
Deduct 322 from 360 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 12:
380 divided by 46 is 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 8554.543478
Subtract 368 from 380 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
46 can be fit into 120 2 times, resulting in a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 8554.5434782
If we subtract 92 from 120, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
280 divided by 46 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 8554.54347826
Subtracting 276 from 280 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 8554.54347826 and a remainder of 4e-09.