400680 divided by 55 
We're looking to find how many times 55 goes into 400680.

On to step 1:
55 goes into 4 0 times with 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.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 55

On to step 2:
55 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (0) from the dividend, attach it to 40 and continue: 400 / 55

Going ahead to step 3:
The number 55 fits into 400 7 times, leaving a remainder of 15.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 385 from 400 to get 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 55

Step 4:
55 goes into 156 2 times with a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 72.0
Deduct 110 from 156 and we're left with 46.
Fetch the next digit (8) from the dividend, attach it to 46 and continue: 468 / 55

On to step 5:
468 divided by 55 is 8 with a remainder of 28.
The next digit of our result is 8. 
Result so far: 728.0
The remainder is 28 after subtracting 440 from 468.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 55

Step 6:
55 can be fit into 280 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 7285.0
Deduct 275 from 280 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
When dividing 50 by 55, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 7285.0
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
When dividing 500 by 55, we get 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 7285.09
Subtracting 495 from 500 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
If we divide 50 by 55, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 7285.09
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
The number 55 fits into 500 9 times, leaving a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 7285.0909
If we take 495 away from 500, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
When dividing 50 by 55, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 7285.0909
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 12:
The number 55 fits into 500 9 times, leaving a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 7285.090909
If we subtract 495 from 500, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
50 divided by 55 is 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 7285.090909
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 14:
The number 55 fits into 500 9 times, leaving a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 7285.09090909
Subtract 495 from 500 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 7285.09090909, and the remainder is 5e-09.