Let's divide 934239 by 21
Let's see how many times 21 fits into 934239.

On to step 1:
The number 21 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 21

Moving on to step 2:
93 divided by 21 is 4 with a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 84 away from 93, we end up with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 21

Advancing to step 3:
If we divide 94 by 21, we get 4 and a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we take 84 away from 94, we end up with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 21

Step 4:
If we divide 102 by 21, we get 4 and a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 444.0
The remainder is 18 after subtracting 84 from 102.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 21

Moving on to step 5:
183 divided by 21 is 8 with a remainder of 15.
Use 8 as the next digit of our solution. 
Result so far: 4448.0
If we take 168 away from 183, we end up with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 21

Going ahead to step 6:
If we divide 159 by 21, we get 7 and a remainder of 12.
The next digit of our result is 7. 
Result so far: 44487.0
Deduct 147 from 159 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
If we divide 120 by 21, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 44487.5
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 8:
21 goes into 150 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 44487.57
If we take 147 away from 150, we end up 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.

Step 9:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 44487.571
If we subtract 21 from 30, we get 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 10:
If we divide 90 by 21, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 44487.5714
Subtract 84 from 90 to 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.

Step 11:
If we divide 60 by 21, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 44487.57142
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
21 goes into 180 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 44487.571428
If we subtract 168 from 180, we 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.

Going ahead to step 13:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 44487.5714285
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.

Going ahead to step 14:
21 can be fit into 150 7 times, resulting in a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 44487.57142857
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.

After the division, we end up with 44487.57142857 and a remainder of 3e-09.