Let's divide 379228 by 21
Let's see how many times 21 fits into 379228.

On to step 1:
If we divide 3 by 21, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 21

Moving on to step 2:
The number 21 fits into 37 1 times, leaving a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 21 from 37 and we're left with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 21

Step 3:
The number 21 fits into 169 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 168 from 169 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 21

Let's proceed to step 4:
21 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 180.0
If we subtract 0 from 12, we get 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 21

Advancing to step 5:
When dividing 122 by 21, we get 5 with a remainder of 17.
Record the quotient 5 as the next digit in the result. 
Result so far: 1805.0
Subtracting 105 from 122 leaves us with 17.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 21

Going ahead to step 6:
21 can be fit into 178 8 times, resulting in a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 18058.0
Subtracting 168 from 178 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
If we divide 100 by 21, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 18058.4
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
When dividing 160 by 21, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 18058.47
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
130 divided by 21 is 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 18058.476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
When dividing 40 by 21, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 18058.4761
If we take 21 away from 40, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 11:
If we divide 190 by 21, we get 9 and a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 18058.47619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
If we divide 10 by 21, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 18058.47619
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 18058.4761904
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
21 goes into 160 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 18058.47619047
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 18058.47619047 with a remaining 1.3e-08.