21556019 ÷ 772 
We want to figure out the number of times 21556019 can be divided by 772.

Advancing to step 1:
If we divide 2 by 772, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 772

Going ahead to step 2:
The number 772 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 772

Let's proceed to step 3:
772 goes into 215 0 times with a remainder of 215.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Fetch the next digit (5) from the dividend, attach it to 215 and continue: 2155 / 772

Let's proceed to step 4:
If we divide 2155 by 772, we get 2 and a remainder of 611.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1544 from 2155 to get 611.
Append the next digit (6) from the dividend to 611 and continue with: 6116 / 772

Let's proceed to step 5:
772 can be fit into 6116 7 times, resulting in a remainder of 712.
The next digit of our result is 7. 
Result so far: 27.0
If we subtract 5404 from 6116, we get 712.
Bring next digit (0) of the dividend behind the 712 and repeat the process: 7120 / 772

Going ahead to step 6:
When dividing 7120 by 772, we get 9 with a remainder of 172.
The next digit of our result is 9. 
Result so far: 279.0
If we subtract 6948 from 7120, we get 172.
Bring next digit (1) of the dividend behind the 172 and repeat the process: 1721 / 772

Advancing to step 7:
772 can be fit into 1721 2 times, resulting in a remainder of 177.
Record the quotient 2 as the next digit in the result. 
Result so far: 2792.0
The remainder is 177 after subtracting 1544 from 1721.
Take the next digit (9) from the dividend and append it to 177, then repeat: 1779 / 772

Going ahead to step 8:
The number 772 fits into 1779 2 times, leaving a remainder of 235.
Put 2 as the next digit of the answer. 
Result so far: 27922.0
If we subtract 1544 from 1779, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 9:
The number 772 fits into 2350 3 times, leaving a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 27922.3
If we take 2316 away from 2350, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
772 can be fit into 340 0 times, resulting in a remainder of 340.
Write down 0 as next digit of the result. 
Result so far: 27922.3
Subtract 0 from 340 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 11:
If we divide 3400 by 772, we get 4 and a remainder of 312.
Record the quotient 4 as the next digit in the result. 
Result so far: 27922.304
Subtract 3088 from 3400 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Going ahead to step 12:
When dividing 3120 by 772, we get 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 27922.3044
Subtracting 3088 from 3120 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 27922.3044 and a remainder of 0.00032.