Let's divide 215561 by 4
We want to figure out the number of times 215561 can be divided by 4.

Let's proceed to step 1:
2 divided by 4 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 4

Step 2:
If we divide 21 by 4, we get 5 and a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 20 from 21, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 4

Advancing to step 3:
4 can be fit into 15 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 53.0
Subtract 12 from 15 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 4

Moving on to step 4:
4 goes into 35 8 times with a remainder of 3.
The next digit of our result is 8. 
Result so far: 538.0
The remainder is 3 after subtracting 32 from 35.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 4

Advancing to step 5:
4 goes into 36 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 5389.0
If we subtract 36 from 36, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 4

On to step 6:
4 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 53890.0
The remainder is 1 after subtracting 0 from 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 7:
10 divided by 4 is 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 53890.2
If we take 8 away from 10, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
20 divided by 4 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 53890.25
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
4 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 53890.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
4 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 53890.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 53890.25 with a remainder of 0.0.