55986680 ÷ 999 
Let's see how many times 999 fits into 55986680.

On to step 1:
If we divide 5 by 999, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 999

Advancing to step 2:
999 can be fit into 55 0 times, resulting in a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 55 to get 55.
Grab the next digit (9) from the dividend, add it to 55, then carry on: 559 / 999

Advancing to step 3:
559 divided by 999 is 0 with a remainder of 559.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 559 and we're left with 559.
Take the next digit (8) from the dividend and append it to 559, then repeat: 5598 / 999

Let's proceed to step 4:
999 can be fit into 5598 5 times, resulting in a remainder of 603.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 4995 from 5598 to get 603.
Take the next digit (6) from the dividend and append it to 603, then repeat: 6036 / 999

Going ahead to step 5:
6036 divided by 999 is 6 with a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 56.0
Subtract 5994 from 6036 to get 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 999

Moving on to step 6:
The number 999 fits into 426 0 times, leaving a remainder of 426.
Put 0 as the next digit of the answer. 
Result so far: 560.0
Subtracting 0 from 426 leaves us with 426.
Include the next digit (8) from the dividend after 426, then repeat: 4268 / 999

Going ahead to step 7:
The number 999 fits into 4268 4 times, leaving a remainder of 272.
Use 4 as the next digit of our solution. 
Result so far: 5604.0
If we subtract 3996 from 4268, we get 272.
Grab the next digit (0) from the dividend, add it to 272, then carry on: 2720 / 999

Moving on to step 8:
When dividing 2720 by 999, we get 2 with a remainder of 722.
Use 2 as the next digit of our solution. 
Result so far: 56042.0
If we take 1998 away from 2720, we end up with 722.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7220, and continue the process.

Moving on to step 9:
999 goes into 7220 7 times with a remainder of 227.
The next digit of our result is 7. 
Result so far: 56042.7
If we subtract 6993 from 7220, we get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Let's proceed to step 10:
If we divide 2270 by 999, we get 2 and a remainder of 272.
Use 2 as the next digit of our solution. 
Result so far: 56042.72
Deduct 1998 from 2270 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 11:
2720 divided by 999 is 2 with a remainder of 722.
Record the quotient 2 as the next digit in the result. 
Result so far: 56042.722
Subtracting 1998 from 2720 leaves us with 722.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7220, and continue the process.

After the division, we end up with 56042.722 and a remainder of 0.0722.