21625644 divided by 678 
Let's see how many times 678 fits into 21625644.

Going ahead to step 1:
678 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 678

Going ahead to step 2:
If we divide 21 by 678, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 678

Moving on to step 3:
678 goes into 216 0 times with a remainder of 216.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 216, we get 216.
Include the next digit (2) from the dividend after 216, then repeat: 2162 / 678

Moving on to step 4:
2162 divided by 678 is 3 with a remainder of 128.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 128 after subtracting 2034 from 2162.
Bring next digit (5) of the dividend behind the 128 and repeat the process: 1285 / 678

Let's proceed to step 5:
1285 divided by 678 is 1 with a remainder of 607.
The next digit of our result is 1. 
Result so far: 31.0
The remainder is 607 after subtracting 678 from 1285.
Bring next digit (6) of the dividend behind the 607 and repeat the process: 6076 / 678

Moving on to step 6:
678 goes into 6076 8 times with a remainder of 652.
Put 8 as the next digit of the answer. 
Result so far: 318.0
If we subtract 5424 from 6076, we get 652.
Fetch the next digit (4) from the dividend, attach it to 652 and continue: 6524 / 678

Step 7:
If we divide 6524 by 678, we get 9 and a remainder of 422.
Write down 9 as next digit of the result. 
Result so far: 3189.0
Deduct 6102 from 6524 and we're left with 422.
Bring next digit (4) of the dividend behind the 422 and repeat the process: 4224 / 678

Step 8:
If we divide 4224 by 678, we get 6 and a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 31896.0
If we subtract 4068 from 4224, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Let's proceed to step 9:
When dividing 1560 by 678, we get 2 with a remainder of 204.
Record the quotient 2 as the next digit in the result. 
Result so far: 31896.2
If we subtract 1356 from 1560, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Let's proceed to step 10:
678 can be fit into 2040 3 times, resulting in a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 31896.23
Subtracting 2034 from 2040 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
678 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 31896.23
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
600 divided by 678 is 0 with a remainder of 600.
Put 0 as the next digit of the answer. 
Result so far: 31896.23
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The quotient of the division is 31896.23, and the remainder is 0.006.