21174563 ÷ 578 
Let's see how many times 578 fits into 21174563.

On to step 1:
578 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
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

Advancing to step 2:
21 divided by 578 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 578

Advancing to step 3:
If we divide 211 by 578, we get 0 and a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 211 after subtracting 0 from 211.
Grab the next digit (7) from the dividend, add it to 211, then carry on: 2117 / 578

On to step 4:
When dividing 2117 by 578, we get 3 with a remainder of 383.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 1734 from 2117, we get 383.
Bring next digit (4) of the dividend behind the 383 and repeat the process: 3834 / 578

Let's proceed to step 5:
578 can be fit into 3834 6 times, resulting in a remainder of 366.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Subtracting 3468 from 3834 leaves us with 366.
Grab the next digit (5) from the dividend, add it to 366, then carry on: 3665 / 578

Step 6:
3665 divided by 578 is 6 with a remainder of 197.
The next digit of our result is 6. 
Result so far: 366.0
If we subtract 3468 from 3665, we get 197.
Take the next digit (6) from the dividend and append it to 197, then repeat: 1976 / 578

Step 7:
578 can be fit into 1976 3 times, resulting in a remainder of 242.
The next digit of our result is 3. 
Result so far: 3663.0
If we take 1734 away from 1976, we end up with 242.
Take the next digit (3) from the dividend and append it to 242, then repeat: 2423 / 578

Going ahead to step 8:
2423 divided by 578 is 4 with a remainder of 111.
Put 4 as the next digit of the answer. 
Result so far: 36634.0
Subtract 2312 from 2423 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Step 9:
If we divide 1110 by 578, we get 1 and a remainder of 532.
Use 1 as the next digit of our solution. 
Result so far: 36634.1
Subtracting 578 from 1110 leaves us with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 10:
578 can be fit into 5320 9 times, resulting in a remainder of 118.
The number 9 becomes the next digit in our result. 
Result so far: 36634.19
If we subtract 5202 from 5320, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Moving on to step 11:
The number 578 fits into 1180 2 times, leaving a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 36634.192
Deduct 1156 from 1180 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 12:
240 divided by 578 is 0 with a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 36634.192
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 13:
2400 divided by 578 is 4 with a remainder of 88.
Use 4 as the next digit of our solution. 
Result so far: 36634.19204
Subtracting 2312 from 2400 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 14:
880 divided by 578 is 1 with a remainder of 302.
Put 1 as the next digit of the answer. 
Result so far: 36634.192041
Deduct 578 from 880 and we're left with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Let's proceed to step 15:
The number 578 fits into 3020 5 times, leaving a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 36634.1920415
Subtracting 2890 from 3020 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 16:
If we divide 1300 by 578, we get 2 and a remainder of 144.
Record the quotient 2 as the next digit in the result. 
Result so far: 36634.19204152
If we take 1156 away from 1300, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

The final result is 36634.19204152 with a remainder of 1.44e-07.