636751 ÷ 51 
We want to figure out the number of times 636751 can be divided by 51.

Advancing to step 1:
If we divide 6 by 51, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 51

Advancing to step 2:
When dividing 63 by 51, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 51 from 63 to get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 51

Advancing to step 3:
When dividing 126 by 51, we get 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 102 from 126 and we're left with 24.
Append the next digit (7) from the dividend to 24 and continue with: 247 / 51

On to step 4:
The number 51 fits into 247 4 times, leaving a remainder of 43.
Put 4 as the next digit of the answer. 
Result so far: 124.0
The remainder is 43 after subtracting 204 from 247.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 51

On to step 5:
When dividing 435 by 51, we get 8 with a remainder of 27.
The next digit of our result is 8. 
Result so far: 1248.0
Subtract 408 from 435 to get 27.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 51

Let's proceed to step 6:
271 divided by 51 is 5 with a remainder of 16.
Record the quotient 5 as the next digit in the result. 
Result so far: 12485.0
Subtract 255 from 271 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
160 divided by 51 is 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 12485.3
Subtracting 153 from 160 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
The number 51 fits into 70 1 times, leaving a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 12485.31
Deduct 51 from 70 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
51 can be fit into 190 3 times, resulting in a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 12485.313
If we subtract 153 from 190, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 10:
The number 51 fits into 370 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 12485.3137
Subtracting 357 from 370 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 11:
51 can be fit into 130 2 times, resulting in a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 12485.31372
If we take 102 away from 130, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 12:
If we divide 280 by 51, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12485.313725
Subtract 255 from 280 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 13:
If we divide 250 by 51, we get 4 and a remainder of 46.
The next digit of our result is 4. 
Result so far: 12485.3137254
The remainder is 46 after subtracting 204 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 14:
The number 51 fits into 460 9 times, leaving a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 12485.31372549
If we take 459 away from 460, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 12485.31372549 with a remainder of 1e-09.