Let's divide 23566195 by 644
We want to divide 23566195 by 644.

Step 1:
The number 644 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 644

Step 2:
When dividing 23 by 644, we get 0 with a remainder of 23.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Grab the next digit (5) from the dividend, add it to 23, then carry on: 235 / 644

Step 3:
235 divided by 644 is 0 with a remainder of 235.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 235 after subtracting 0 from 235.
Append the next digit (6) from the dividend to 235 and continue with: 2356 / 644

Advancing to step 4:
644 can be fit into 2356 3 times, resulting in a remainder of 424.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 424 after subtracting 1932 from 2356.
Append the next digit (6) from the dividend to 424 and continue with: 4246 / 644

Going ahead to step 5:
4246 divided by 644 is 6 with a remainder of 382.
Put 6 as the next digit of the answer. 
Result so far: 36.0
The remainder is 382 after subtracting 3864 from 4246.
Include the next digit (1) from the dividend after 382, then repeat: 3821 / 644

Moving on to step 6:
644 goes into 3821 5 times with a remainder of 601.
The next digit of our result is 5. 
Result so far: 365.0
The remainder is 601 after subtracting 3220 from 3821.
Bring next digit (9) of the dividend behind the 601 and repeat the process: 6019 / 644

Advancing to step 7:
644 goes into 6019 9 times with a remainder of 223.
Use 9 as the next digit of our solution. 
Result so far: 3659.0
Subtracting 5796 from 6019 leaves us with 223.
Grab the next digit (5) from the dividend, add it to 223, then carry on: 2235 / 644

Advancing to step 8:
644 can be fit into 2235 3 times, resulting in a remainder of 303.
The number 3 becomes the next digit in our result. 
Result so far: 36593.0
Deduct 1932 from 2235 and we're left with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Going ahead to step 9:
The number 644 fits into 3030 4 times, leaving a remainder of 454.
Put 4 as the next digit of the answer. 
Result so far: 36593.4
Subtracting 2576 from 3030 leaves us with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Advancing to step 10:
The number 644 fits into 4540 7 times, leaving a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 36593.47
If we take 4508 away from 4540, we end up 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.

Moving on to step 11:
When dividing 320 by 644, we get 0 with a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 36593.47
The remainder is 320 after subtracting 0 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 12:
644 goes into 3200 4 times with a remainder of 624.
Use 4 as the next digit of our solution. 
Result so far: 36593.4704
Subtract 2576 from 3200 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Let's proceed to step 13:
When dividing 6240 by 644, we get 9 with a remainder of 444.
The next digit of our result is 9. 
Result so far: 36593.47049
Subtract 5796 from 6240 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

On to step 14:
4440 divided by 644 is 6 with a remainder of 576.
Record the quotient 6 as the next digit in the result. 
Result so far: 36593.470496
If we subtract 3864 from 4440, we get 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 15:
When dividing 5760 by 644, we get 8 with a remainder of 608.
The next digit of our result is 8. 
Result so far: 36593.4704968
Subtracting 5152 from 5760 leaves us with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 16:
The number 644 fits into 6080 9 times, leaving a remainder of 284.
Record the quotient 9 as the next digit in the result. 
Result so far: 36593.47049689
The remainder is 284 after subtracting 5796 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

After the division, we end up with 36593.47049689 and a remainder of 2.84e-07.