21544861 ÷ 528 
We want to figure out the number of times 21544861 can be divided by 528.

On to step 1:
The number 528 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 528

Advancing to step 2:
If we divide 21 by 528, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 528

Let's proceed to step 3:
When dividing 215 by 528, we get 0 with a remainder of 215.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Bring next digit (4) of the dividend behind the 215 and repeat the process: 2154 / 528

Let's proceed to step 4:
If we divide 2154 by 528, we get 4 and a remainder of 42.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 2112 from 2154 to get 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 528

Step 5:
The number 528 fits into 424 0 times, leaving a remainder of 424.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 424, we end up with 424.
Include the next digit (8) from the dividend after 424, then repeat: 4248 / 528

Moving on to step 6:
528 can be fit into 4248 8 times, resulting in a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 408.0
The remainder is 24 after subtracting 4224 from 4248.
Append the next digit (6) from the dividend to 24 and continue with: 246 / 528

Moving on to step 7:
528 goes into 246 0 times with a remainder of 246.
Put 0 as the next digit of the answer. 
Result so far: 4080.0
Subtracting 0 from 246 leaves us with 246.
Bring next digit (1) of the dividend behind the 246 and repeat the process: 2461 / 528

Moving on to step 8:
When dividing 2461 by 528, we get 4 with a remainder of 349.
Use 4 as the next digit of our solution. 
Result so far: 40804.0
The remainder is 349 after subtracting 2112 from 2461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Step 9:
When dividing 3490 by 528, we get 6 with a remainder of 322.
Write down 6 as next digit of the result. 
Result so far: 40804.6
Subtracting 3168 from 3490 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Moving on to step 10:
If we divide 3220 by 528, we get 6 and a remainder of 52.
Put 6 as the next digit of the answer. 
Result so far: 40804.66
If we subtract 3168 from 3220, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 40804.66 and a remainder of 0.052.