844972 divided by 21 
We want to figure out the number of times 844972 can be divided by 21.

Moving on to step 1:
21 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 21

Moving on to step 2:
The number 21 fits into 84 4 times, leaving a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 84 from 84 leaves us with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 21

Advancing to step 3:
The number 21 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 40.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 21

Step 4:
21 can be fit into 49 2 times, resulting in a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 402.0
The remainder is 7 after subtracting 42 from 49.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 21

Advancing to step 5:
77 divided by 21 is 3 with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 4023.0
The remainder is 14 after subtracting 63 from 77.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 21

Let's proceed to step 6:
142 divided by 21 is 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 40236.0
Subtract 126 from 142 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.

Let's proceed to step 7:
160 divided by 21 is 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 40236.7
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
When dividing 130 by 21, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 40236.76
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
40 divided by 21 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 40236.761
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 10:
190 divided by 21 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 40236.7619
Subtract 189 from 190 to 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.

Advancing to step 11:
When dividing 10 by 21, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 40236.7619
If we take 0 away from 10, we end up 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.

Advancing to step 12:
100 divided by 21 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 40236.761904
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.

Moving on to step 13:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 40236.7619047
Deduct 147 from 160 and we're left 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.

Let's proceed to step 14:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 40236.76190476
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.

The quotient of the division is 40236.76190476, and the remainder is 4e-09.