924553 divided by 21 
We want to figure out the number of times 924553 can be divided by 21.

Let's proceed to step 1:
When dividing 9 by 21, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 21

Step 2:
When dividing 92 by 21, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 84 from 92 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 21

Step 3:
84 divided by 21 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 44.0
Deduct 84 from 84 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 21

Advancing to step 4:
When dividing 5 by 21, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 440.0
If we take 0 away from 5, we end up with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 21

Moving on to step 5:
The number 21 fits into 55 2 times, leaving a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 4402.0
Deduct 42 from 55 and we're left with 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 21

Let's proceed to step 6:
If we divide 133 by 21, we get 6 and a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 44026.0
Subtracting 126 from 133 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
70 divided by 21 is 3 with a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 44026.3
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 8:
If we divide 70 by 21, we get 3 and a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 44026.33
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 44026.33, with a leftover of 0.007.