We look at the division of 13215649 by 628 
We want to figure out the number of times 13215649 can be divided by 628.

Advancing to step 1:
When dividing 1 by 628, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 628

Step 2:
The number 628 fits into 13 0 times, leaving a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 628

On to step 3:
628 goes into 132 0 times with a remainder of 132.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 132, we end up with 132.
Bring next digit (1) of the dividend behind the 132 and repeat the process: 1321 / 628

Advancing to step 4:
1321 divided by 628 is 2 with a remainder of 65.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 1256 from 1321 to get 65.
Grab the next digit (5) from the dividend, add it to 65, then carry on: 655 / 628

On to step 5:
The number 628 fits into 655 1 times, leaving a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we take 628 away from 655, we end up with 27.
Fetch the next digit (6) from the dividend, attach it to 27 and continue: 276 / 628

On to step 6:
If we divide 276 by 628, we get 0 and a remainder of 276.
Use 0 as the next digit of our solution. 
Result so far: 210.0
The remainder is 276 after subtracting 0 from 276.
Bring next digit (4) of the dividend behind the 276 and repeat the process: 2764 / 628

On to step 7:
If we divide 2764 by 628, we get 4 and a remainder of 252.
Use 4 as the next digit of our solution. 
Result so far: 2104.0
Subtract 2512 from 2764 to get 252.
Take the next digit (9) from the dividend and append it to 252, then repeat: 2529 / 628

On to step 8:
628 goes into 2529 4 times with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 21044.0
Subtract 2512 from 2529 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 9:
If we divide 170 by 628, we get 0 and a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 21044.0
If we subtract 0 from 170, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 10:
628 can be fit into 1700 2 times, resulting in a remainder of 444.
Put 2 as the next digit of the answer. 
Result so far: 21044.02
Deduct 1256 from 1700 and we're left with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 11:
628 can be fit into 4440 7 times, resulting in a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 21044.027
Deduct 4396 from 4440 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 12:
When dividing 440 by 628, we get 0 with a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 21044.027
If we take 0 away from 440, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 13:
When dividing 4400 by 628, we get 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 21044.02707
The remainder is 4 after subtracting 4396 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
628 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 21044.02707
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 15:
628 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 21044.02707
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 21044.02707, with a leftover of 4e-06.