We divide 376203 by 21
We want to figure out the number of times 376203 can be divided by 21.

On to step 1:
The number 21 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 21

Step 2:
The number 21 fits into 37 1 times, leaving a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 16 after subtracting 21 from 37.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 21

Step 3:
When dividing 166 by 21, we get 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 147 from 166 leaves us with 19.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 21

Let's proceed to step 4:
192 divided by 21 is 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 179.0
If we subtract 189 from 192, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 21

Moving on to step 5:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1791.0
The remainder is 9 after subtracting 21 from 30.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 21

Going ahead to step 6:
21 can be fit into 93 4 times, resulting in a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 17914.0
Subtracting 84 from 93 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 17914.4
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
60 divided by 21 is 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 17914.42
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 9:
21 goes into 180 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 17914.428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 10:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 17914.4285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The next digit of our result is 7. 
Result so far: 17914.42857
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 12:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 17914.428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 13:
21 goes into 90 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 17914.4285714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
If we divide 60 by 21, we get 2 and a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 17914.42857142
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 17914.42857142 with a balance of 1.8e-08.