We look at the division of 50180844 by 644 
We're looking to find how many times 644 goes into 50180844.

Advancing to step 1:
644 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 644

Going ahead to step 2:
The number 644 fits into 50 0 times, leaving a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 50 leaves us with 50.
Fetch the next digit (1) from the dividend, attach it to 50 and continue: 501 / 644

Advancing to step 3:
If we divide 501 by 644, we get 0 and a remainder of 501.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 501 after subtracting 0 from 501.
Append the next digit (8) from the dividend to 501 and continue with: 5018 / 644

Let's proceed to step 4:
The number 644 fits into 5018 7 times, leaving a remainder of 510.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 4508 from 5018 and we're left with 510.
Take the next digit (0) from the dividend and append it to 510, then repeat: 5100 / 644

On to step 5:
644 goes into 5100 7 times with a remainder of 592.
Put 7 as the next digit of the answer. 
Result so far: 77.0
Deduct 4508 from 5100 and we're left with 592.
Append the next digit (8) from the dividend to 592 and continue with: 5928 / 644

Step 6:
644 can be fit into 5928 9 times, resulting in a remainder of 132.
Put 9 as the next digit of the answer. 
Result so far: 779.0
Subtracting 5796 from 5928 leaves us with 132.
Grab the next digit (4) from the dividend, add it to 132, then carry on: 1324 / 644

Advancing to step 7:
644 can be fit into 1324 2 times, resulting in a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 7792.0
Deduct 1288 from 1324 and we're left with 36.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 644

On to step 8:
644 can be fit into 364 0 times, resulting in a remainder of 364.
Write down 0 as next digit of the result. 
Result so far: 77920.0
If we take 0 away from 364, we end up with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 9:
644 goes into 3640 5 times with a remainder of 420.
The next digit of our result is 5. 
Result so far: 77920.5
If we subtract 3220 from 3640, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 10:
If we divide 4200 by 644, we get 6 and a remainder of 336.
Record the quotient 6 as the next digit in the result. 
Result so far: 77920.56
Subtract 3864 from 4200 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 11:
644 can be fit into 3360 5 times, resulting in a remainder of 140.
Record the quotient 5 as the next digit in the result. 
Result so far: 77920.565
Subtracting 3220 from 3360 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 12:
644 can be fit into 1400 2 times, resulting in a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 77920.5652
If we subtract 1288 from 1400, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 13:
644 goes into 1120 1 times with a remainder of 476.
Put 1 as the next digit of the answer. 
Result so far: 77920.56521
Subtract 644 from 1120 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Let's proceed to step 14:
4760 divided by 644 is 7 with a remainder of 252.
The number 7 becomes the next digit in our result. 
Result so far: 77920.565217
Subtract 4508 from 4760 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 15:
The number 644 fits into 2520 3 times, leaving a remainder of 588.
Put 3 as the next digit of the answer. 
Result so far: 77920.5652173
The remainder is 588 after subtracting 1932 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Advancing to step 16:
5880 divided by 644 is 9 with a remainder of 84.
Record the quotient 9 as the next digit in the result. 
Result so far: 77920.56521739
Subtracting 5796 from 5880 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

The final result is 77920.56521739 with a remainder of 8.4e-08.