We look at the division of 845569 by 21 
Our goal is to divide 845569 by 21.

Moving on to step 1:
21 goes into 8 0 times 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.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 21

Moving on to step 2:
21 goes into 84 4 times with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 84 from 84 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 21

Going ahead to step 3:
21 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 40.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 21

Step 4:
55 divided by 21 is 2 with a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 402.0
Subtracting 42 from 55 leaves us with 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 21

On to step 5:
21 goes into 136 6 times with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 4026.0
If we take 126 away from 136, we end up with 10.
Take the next digit (9) from the dividend and append it to 10, then repeat: 109 / 21

On to step 6:
The number 21 fits into 109 5 times, leaving a remainder of 4.
The next digit of our result is 5. 
Result so far: 40265.0
Subtract 105 from 109 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
40 divided by 21 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 40265.1
Subtracting 21 from 40 leaves us 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.

Going ahead to step 8:
When dividing 190 by 21, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 40265.19
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
10 divided by 21 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 40265.19
Subtracting 0 from 10 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.

Advancing to step 10:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 40265.1904
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
When dividing 160 by 21, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 40265.19047
If we subtract 147 from 160, we 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.

Step 12:
130 divided by 21 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 40265.190476
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.

Advancing to step 13:
When dividing 40 by 21, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 40265.1904761
If we subtract 21 from 40, we 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.

Step 14:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 40265.19047619
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.

The quotient of the division is 40265.19047619, and the remainder is 1e-09.