We divide 400646 by 48
We want to figure out the number of times 400646 can be divided by 48.

Advancing to step 1:
48 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 48

Going ahead to step 2:
When dividing 40 by 48, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Bring next digit (0) of the dividend behind the 40 and repeat the process: 400 / 48

Advancing to step 3:
The number 48 fits into 400 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 384 from 400, we get 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 48

On to step 4:
If we divide 166 by 48, we get 3 and a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
Subtract 144 from 166 to get 22.
Take the next digit (4) from the dividend and append it to 22, then repeat: 224 / 48

Step 5:
48 goes into 224 4 times with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 834.0
Subtracting 192 from 224 leaves us with 32.
Bring next digit (6) of the dividend behind the 32 and repeat the process: 326 / 48

Step 6:
48 can be fit into 326 6 times, resulting in a remainder of 38.
Write down 6 as next digit of the result. 
Result so far: 8346.0
If we take 288 away from 326, we end up 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 7:
380 divided by 48 is 7 with a remainder of 44.
Write down 7 as next digit of the result. 
Result so far: 8346.7
If we subtract 336 from 380, we 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.

Moving on to step 8:
The number 48 fits into 440 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 8346.79
If we subtract 432 from 440, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
When dividing 80 by 48, we get 1 with a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 8346.791
Subtract 48 from 80 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
48 goes into 320 6 times with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 8346.7916
Subtract 288 from 320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
The number 48 fits into 320 6 times, leaving a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 8346.79166
Subtracting 288 from 320 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 8346.79166 and a remainder of 3.2e-05.