Let's divide 6680867 by 999
We want to figure out the number of times 6680867 can be divided by 999.

On to step 1:
The number 999 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 999

Step 2:
999 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 999

Advancing to step 3:
668 divided by 999 is 0 with a remainder of 668.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 668 to get 668.
Append the next digit (0) from the dividend to 668 and continue with: 6680 / 999

Moving on to step 4:
When dividing 6680 by 999, we get 6 with a remainder of 686.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 5994 from 6680 and we're left with 686.
Include the next digit (8) from the dividend after 686, then repeat: 6868 / 999

Moving on to step 5:
When dividing 6868 by 999, we get 6 with a remainder of 874.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
Subtracting 5994 from 6868 leaves us with 874.
Include the next digit (6) from the dividend after 874, then repeat: 8746 / 999

Step 6:
When dividing 8746 by 999, we get 8 with a remainder of 754.
The number 8 becomes the next digit in our result. 
Result so far: 668.0
Deduct 7992 from 8746 and we're left with 754.
Include the next digit (7) from the dividend after 754, then repeat: 7547 / 999

Advancing to step 7:
When dividing 7547 by 999, we get 7 with a remainder of 554.
Put 7 as the next digit of the answer. 
Result so far: 6687.0
The remainder is 554 after subtracting 6993 from 7547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Step 8:
If we divide 5540 by 999, we get 5 and a remainder of 545.
Write down 5 as next digit of the result. 
Result so far: 6687.5
If we take 4995 away from 5540, we end up with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Moving on to step 9:
The number 999 fits into 5450 5 times, leaving a remainder of 455.
Record the quotient 5 as the next digit in the result. 
Result so far: 6687.55
Subtracting 4995 from 5450 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

The final result is 6687.55 with a remainder of 0.455.