552667 divided by 21 
We want to figure out the number of times 552667 can be divided by 21.

Advancing to step 1:
21 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 21

Advancing to step 2:
21 can be fit into 55 2 times, resulting in a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 42 from 55 leaves us with 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 21

Advancing to step 3:
If we divide 132 by 21, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we subtract 126 from 132, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 21

Going ahead to step 4:
21 goes into 66 3 times with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 263.0
The remainder is 3 after subtracting 63 from 66.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 21

Advancing to step 5:
When dividing 36 by 21, we get 1 with a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 2631.0
The remainder is 15 after subtracting 21 from 36.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 21

Step 6:
The number 21 fits into 157 7 times, leaving a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 26317.0
The remainder is 10 after subtracting 147 from 157.
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:
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: 26317.4
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:
160 divided by 21 is 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 26317.47
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.

Advancing to step 9:
21 goes into 130 6 times with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 26317.476
Subtract 126 from 130 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 10:
21 goes into 40 1 times with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 26317.4761
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing 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: 26317.47619
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.

Moving on to step 12:
21 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 26317.47619
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.

Let's proceed to step 13:
21 goes into 100 4 times with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 26317.4761904
Subtracting 84 from 100 leaves us 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.

Advancing to step 14:
If we divide 160 by 21, we get 7 and a remainder of 13.
The next digit of our result is 7. 
Result so far: 26317.47619047
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.

The final result is 26317.47619047 with a remainder of 1.3e-08.