We're dividing 21625220 by 315 
We want to figure out the number of times 21625220 can be divided by 315.

On to step 1:
315 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 315

Let's proceed to step 2:
315 can be fit into 21 0 times, resulting in a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 315

Let's proceed to step 3:
If we divide 216 by 315, we get 0 and a remainder of 216.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 216 and we're left with 216.
Include the next digit (2) from the dividend after 216, then repeat: 2162 / 315

Let's proceed to step 4:
315 can be fit into 2162 6 times, resulting in a remainder of 272.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 1890 from 2162, we get 272.
Fetch the next digit (5) from the dividend, attach it to 272 and continue: 2725 / 315

Step 5:
If we divide 2725 by 315, we get 8 and a remainder of 205.
Use 8 as the next digit of our solution. 
Result so far: 68.0
Subtracting 2520 from 2725 leaves us with 205.
Fetch the next digit (2) from the dividend, attach it to 205 and continue: 2052 / 315

Let's proceed to step 6:
315 can be fit into 2052 6 times, resulting in a remainder of 162.
Write down 6 as next digit of the result. 
Result so far: 686.0
If we subtract 1890 from 2052, we get 162.
Fetch the next digit (2) from the dividend, attach it to 162 and continue: 1622 / 315

Advancing to step 7:
The number 315 fits into 1622 5 times, leaving a remainder of 47.
Use 5 as the next digit of our solution. 
Result so far: 6865.0
If we take 1575 away from 1622, we end up with 47.
Fetch the next digit (0) from the dividend, attach it to 47 and continue: 470 / 315

Let's proceed to step 8:
470 divided by 315 is 1 with a remainder of 155.
The next digit of our result is 1. 
Result so far: 68651.0
Subtract 315 from 470 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 9:
315 goes into 1550 4 times with a remainder of 290.
Record the quotient 4 as the next digit in the result. 
Result so far: 68651.4
If we subtract 1260 from 1550, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Advancing to step 10:
2900 divided by 315 is 9 with a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 68651.49
If we take 2835 away from 2900, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 11:
650 divided by 315 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 68651.492
Subtracting 630 from 650 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
The number 315 fits into 200 0 times, leaving a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 68651.492
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 13:
315 goes into 2000 6 times with a remainder of 110.
Put 6 as the next digit of the answer. 
Result so far: 68651.49206
Subtract 1890 from 2000 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 14:
The number 315 fits into 1100 3 times, leaving a remainder of 155.
Put 3 as the next digit of the answer. 
Result so far: 68651.492063
If we subtract 945 from 1100, we get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Going ahead to step 15:
1550 divided by 315 is 4 with a remainder of 290.
Put 4 as the next digit of the answer. 
Result so far: 68651.4920634
If we subtract 1260 from 1550, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 16:
315 goes into 2900 9 times with a remainder of 65.
Write down 9 as next digit of the result. 
Result so far: 68651.49206349
If we subtract 2835 from 2900, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 68651.49206349 with a remainder of 6.5e-08.