We divide 50422975 by 644
We want to divide 50422975 by 644.

On to step 1:
5 divided by 644 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 644

Step 2:
When dividing 50 by 644, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 644

On to step 3:
504 divided by 644 is 0 with a remainder of 504.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 504 and we're left with 504.
Include the next digit (2) from the dividend after 504, then repeat: 5042 / 644

Advancing to step 4:
5042 divided by 644 is 7 with a remainder of 534.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 4508 from 5042 and we're left with 534.
Take the next digit (2) from the dividend and append it to 534, then repeat: 5342 / 644

Step 5:
5342 divided by 644 is 8 with a remainder of 190.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtracting 5152 from 5342 leaves us with 190.
Include the next digit (9) from the dividend after 190, then repeat: 1909 / 644

Advancing to step 6:
If we divide 1909 by 644, we get 2 and a remainder of 621.
Use 2 as the next digit of our solution. 
Result so far: 782.0
Subtract 1288 from 1909 to get 621.
Grab the next digit (7) from the dividend, add it to 621, then carry on: 6217 / 644

Moving on to step 7:
644 can be fit into 6217 9 times, resulting in a remainder of 421.
Use 9 as the next digit of our solution. 
Result so far: 7829.0
Subtract 5796 from 6217 to get 421.
Fetch the next digit (5) from the dividend, attach it to 421 and continue: 4215 / 644

Step 8:
When dividing 4215 by 644, we get 6 with a remainder of 351.
Put 6 as the next digit of the answer. 
Result so far: 78296.0
Deduct 3864 from 4215 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Moving on to step 9:
When dividing 3510 by 644, we get 5 with a remainder of 290.
The next digit of our result is 5. 
Result so far: 78296.5
Deduct 3220 from 3510 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 10:
644 can be fit into 2900 4 times, resulting in a remainder of 324.
Write down 4 as next digit of the result. 
Result so far: 78296.54
The remainder is 324 after subtracting 2576 from 2900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 11:
When dividing 3240 by 644, we get 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 78296.545
Subtracting 3220 from 3240 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
644 goes into 200 0 times with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 78296.545
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 13:
The number 644 fits into 2000 3 times, leaving a remainder of 68.
Use 3 as the next digit of our solution. 
Result so far: 78296.54503
Subtracting 1932 from 2000 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 14:
680 divided by 644 is 1 with a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 78296.545031
If we subtract 644 from 680, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 15:
644 goes into 360 0 times with a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 78296.545031
If we take 0 away from 360, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 16:
3600 divided by 644 is 5 with a remainder of 380.
Use 5 as the next digit of our solution. 
Result so far: 78296.54503105
If we subtract 3220 from 3600, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Our division results in 78296.54503105 with a remaining 3.8e-07.