We look at the division of 21655522 by 578 
We want to figure out the number of times 21655522 can be divided by 578.

Going ahead to step 1:
When dividing 2 by 578, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 578

On to step 2:
21 divided by 578 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 578

Advancing to step 3:
578 goes into 216 0 times with a remainder of 216.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 216 leaves us with 216.
Take the next digit (5) from the dividend and append it to 216, then repeat: 2165 / 578

Going ahead to step 4:
The number 578 fits into 2165 3 times, leaving a remainder of 431.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 1734 from 2165 and we're left with 431.
Take the next digit (5) from the dividend and append it to 431, then repeat: 4315 / 578

Step 5:
578 can be fit into 4315 7 times, resulting in a remainder of 269.
The next digit of our result is 7. 
Result so far: 37.0
If we subtract 4046 from 4315, we get 269.
Grab the next digit (5) from the dividend, add it to 269, then carry on: 2695 / 578

Moving on to step 6:
When dividing 2695 by 578, we get 4 with a remainder of 383.
Write down 4 as next digit of the result. 
Result so far: 374.0
The remainder is 383 after subtracting 2312 from 2695.
Include the next digit (2) from the dividend after 383, then repeat: 3832 / 578

Let's proceed to step 7:
3832 divided by 578 is 6 with a remainder of 364.
Use 6 as the next digit of our solution. 
Result so far: 3746.0
If we subtract 3468 from 3832, we get 364.
Fetch the next digit (2) from the dividend, attach it to 364 and continue: 3642 / 578

Let's proceed to step 8:
When dividing 3642 by 578, we get 6 with a remainder of 174.
Use 6 as the next digit of our solution. 
Result so far: 37466.0
Subtract 3468 from 3642 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 9:
1740 divided by 578 is 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 37466.3
Subtract 1734 from 1740 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
If we divide 60 by 578, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 37466.3
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
600 divided by 578 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 37466.301
Subtracting 578 from 600 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
578 can be fit into 220 0 times, resulting in a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 37466.301
Deduct 0 from 220 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 13:
578 goes into 2200 3 times with a remainder of 466.
The number 3 becomes the next digit in our result. 
Result so far: 37466.30103
If we take 1734 away from 2200, we end up with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Let's proceed to step 14:
4660 divided by 578 is 8 with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 37466.301038
Deduct 4624 from 4660 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 15:
When dividing 360 by 578, we get 0 with a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 37466.301038
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 16:
3600 divided by 578 is 6 with a remainder of 132.
Write down 6 as next digit of the result. 
Result so far: 37466.30103806
The remainder is 132 after subtracting 3468 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

The final outcome is 37466.30103806, with a leftover of 1.32e-07.