Let's divide 874044 by 21
Our goal is to divide 874044 by 21.

On to step 1:
When dividing 8 by 21, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 21

On to step 2:
When dividing 87 by 21, we get 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 84 from 87, we get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 21

Going ahead to step 3:
If we divide 34 by 21, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 41.0
The remainder is 13 after subtracting 21 from 34.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 21

Advancing to step 4:
21 goes into 130 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 416.0
If we subtract 126 from 130, we get 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 21

Let's proceed to step 5:
21 goes into 44 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 4162.0
Subtracting 42 from 44 leaves us with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 21

Going ahead to step 6:
24 divided by 21 is 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 41621.0
If we subtract 21 from 24, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
If we divide 30 by 21, we get 1 and a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 41621.1
Subtract 21 from 30 to 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.

Advancing to step 8:
21 goes into 90 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 41621.14
Deduct 84 from 90 and we're left 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.

Moving on to step 9:
When dividing 60 by 21, we get 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 41621.142
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.

Let's proceed to step 10:
180 divided by 21 is 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 41621.1428
If we take 168 away from 180, we end up 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.

Let's proceed to step 11:
If we divide 120 by 21, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 41621.14285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 12:
The number 21 fits into 150 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 41621.142857
Subtracting 147 from 150 leaves us 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.

Let's proceed to step 13:
30 divided by 21 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 41621.1428571
Subtract 21 from 30 to 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.

Advancing to step 14:
When dividing 90 by 21, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 41621.14285714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 41621.14285714 and a remainder of 6e-09.