We look at the division of 33080949 by 644 
We want to divide 33080949 by 644.

Advancing to step 1:
If we divide 3 by 644, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 644

On to step 2:
The number 644 fits into 33 0 times, leaving a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Take the next digit (0) from the dividend and append it to 33, then repeat: 330 / 644

Step 3:
When dividing 330 by 644, we get 0 with a remainder of 330.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 330 leaves us with 330.
Append the next digit (8) from the dividend to 330 and continue with: 3308 / 644

Step 4:
644 goes into 3308 5 times with a remainder of 88.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 3220 from 3308 to get 88.
Fetch the next digit (0) from the dividend, attach it to 88 and continue: 880 / 644

Advancing to step 5:
If we divide 880 by 644, we get 1 and a remainder of 236.
The next digit of our result is 1. 
Result so far: 51.0
The remainder is 236 after subtracting 644 from 880.
Include the next digit (9) from the dividend after 236, then repeat: 2369 / 644

Going ahead to step 6:
When dividing 2369 by 644, we get 3 with a remainder of 437.
Write down 3 as next digit of the result. 
Result so far: 513.0
Deduct 1932 from 2369 and we're left with 437.
Take the next digit (4) from the dividend and append it to 437, then repeat: 4374 / 644

On to step 7:
644 can be fit into 4374 6 times, resulting in a remainder of 510.
The next digit of our result is 6. 
Result so far: 5136.0
Subtracting 3864 from 4374 leaves us with 510.
Append the next digit (9) from the dividend to 510 and continue with: 5109 / 644

Going ahead to step 8:
The number 644 fits into 5109 7 times, leaving a remainder of 601.
Write down 7 as next digit of the result. 
Result so far: 51367.0
If we take 4508 away from 5109, we end up with 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Step 9:
644 can be fit into 6010 9 times, resulting in a remainder of 214.
Use 9 as the next digit of our solution. 
Result so far: 51367.9
The remainder is 214 after subtracting 5796 from 6010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Advancing to step 10:
When dividing 2140 by 644, we get 3 with a remainder of 208.
Put 3 as the next digit of the answer. 
Result so far: 51367.93
Subtracting 1932 from 2140 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 11:
The number 644 fits into 2080 3 times, leaving a remainder of 148.
Write down 3 as next digit of the result. 
Result so far: 51367.933
Deduct 1932 from 2080 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

The final result is 51367.933 with a remainder of 0.0148.