633869 divided by 51 
Our goal is to divide 633869 by 51.

Going ahead to step 1:
If we divide 6 by 51, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 51

Advancing to step 2:
51 goes into 63 1 times with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 12 after subtracting 51 from 63.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 51

Advancing to step 3:
If we divide 123 by 51, we get 2 and a remainder of 21.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 21 after subtracting 102 from 123.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 51

Going ahead to step 4:
51 goes into 218 4 times with a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 124.0
Deduct 204 from 218 and we're left with 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 51

On to step 5:
The number 51 fits into 146 2 times, leaving a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 1242.0
Deduct 102 from 146 and we're left with 44.
Take the next digit (9) from the dividend and append it to 44, then repeat: 449 / 51

Advancing to step 6:
449 divided by 51 is 8 with a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 12428.0
Subtracting 408 from 449 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 7:
51 can be fit into 410 8 times, resulting in a remainder of 2.
The next digit of our result is 8. 
Result so far: 12428.8
If we take 408 away from 410, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
If we divide 20 by 51, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 12428.8
Subtracting 0 from 20 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.

On to step 9:
51 goes into 200 3 times with a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 12428.803
Deduct 153 from 200 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 10:
If we divide 470 by 51, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 12428.8039
Subtracting 459 from 470 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 11:
When dividing 110 by 51, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 12428.80392
Subtract 102 from 110 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
80 divided by 51 is 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 12428.803921
Deduct 51 from 80 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 13:
51 goes into 290 5 times with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 12428.8039215
If we take 255 away from 290, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 14:
If we divide 350 by 51, we get 6 and a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 12428.80392156
If we subtract 306 from 350, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

After the division, we end up with 12428.80392156 and a remainder of 4.4e-08.