We're dividing 51831430 by 635 
We want to figure out the number of times 51831430 can be divided by 635.

Moving on to step 1:
The number 635 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 635

Going ahead to step 2:
51 divided by 635 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 635

Going ahead to step 3:
518 divided by 635 is 0 with a remainder of 518.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 518 after subtracting 0 from 518.
Bring next digit (3) of the dividend behind the 518 and repeat the process: 5183 / 635

Step 4:
635 goes into 5183 8 times with a remainder of 103.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 5080 from 5183 to get 103.
Bring next digit (1) of the dividend behind the 103 and repeat the process: 1031 / 635

Advancing to step 5:
The number 635 fits into 1031 1 times, leaving a remainder of 396.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
If we take 635 away from 1031, we end up with 396.
Take the next digit (4) from the dividend and append it to 396, then repeat: 3964 / 635

Advancing to step 6:
If we divide 3964 by 635, we get 6 and a remainder of 154.
Write down 6 as next digit of the result. 
Result so far: 816.0
Subtracting 3810 from 3964 leaves us with 154.
Grab the next digit (3) from the dividend, add it to 154, then carry on: 1543 / 635

Moving on to step 7:
If we divide 1543 by 635, we get 2 and a remainder of 273.
The number 2 becomes the next digit in our result. 
Result so far: 8162.0
If we subtract 1270 from 1543, we get 273.
Append the next digit (0) from the dividend to 273 and continue with: 2730 / 635

Advancing to step 8:
When dividing 2730 by 635, we get 4 with a remainder of 190.
The number 4 becomes the next digit in our result. 
Result so far: 81624.0
If we subtract 2540 from 2730, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 9:
When dividing 1900 by 635, we get 2 with a remainder of 630.
Use 2 as the next digit of our solution. 
Result so far: 81624.2
Subtracting 1270 from 1900 leaves us with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 10:
When dividing 6300 by 635, we get 9 with a remainder of 585.
Write down 9 as next digit of the result. 
Result so far: 81624.29
Subtract 5715 from 6300 to get 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Moving on to step 11:
When dividing 5850 by 635, we get 9 with a remainder of 135.
Use 9 as the next digit of our solution. 
Result so far: 81624.299
If we subtract 5715 from 5850, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Our division results in 81624.299 with a remaining 0.0135.