We're dividing 187921 by 3 
We want to divide 187921 by 3.

On to step 1:
When dividing 1 by 3, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 3

Step 2:
The number 3 fits into 18 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 18 from 18, we get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 3

Step 3:
7 divided by 3 is 2 with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 6 from 7, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 3

On to step 4:
When dividing 19 by 3, we get 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 626.0
The remainder is 1 after subtracting 18 from 19.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 3

Step 5:
When dividing 12 by 3, we get 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 6264.0
The remainder is 0 after subtracting 12 from 12.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 3

On to step 6:
1 divided by 3 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 62640.0
If we take 0 away from 1, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
3 goes into 10 3 times with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 62640.3
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
10 divided by 3 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 62640.33
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 62640.33 with a balance of 0.001.