51396403 ÷ 852 
We want to figure out the number of times 51396403 can be divided by 852.

Going ahead to step 1:
If we divide 5 by 852, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 852

Let's proceed to step 2:
The number 852 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Append the next digit (3) from the dividend to 51 and continue with: 513 / 852

On to step 3:
513 divided by 852 is 0 with a remainder of 513.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 513, we end up with 513.
Take the next digit (9) from the dividend and append it to 513, then repeat: 5139 / 852

Moving on to step 4:
5139 divided by 852 is 6 with a remainder of 27.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 5112 from 5139 leaves us with 27.
Take the next digit (6) from the dividend and append it to 27, then repeat: 276 / 852

Going ahead to step 5:
When dividing 276 by 852, we get 0 with a remainder of 276.
Write down 0 as next digit of the result. 
Result so far: 60.0
The remainder is 276 after subtracting 0 from 276.
Take the next digit (4) from the dividend and append it to 276, then repeat: 2764 / 852

Moving on to step 6:
The number 852 fits into 2764 3 times, leaving a remainder of 208.
The number 3 becomes the next digit in our result. 
Result so far: 603.0
Deduct 2556 from 2764 and we're left with 208.
Append the next digit (0) from the dividend to 208 and continue with: 2080 / 852

Step 7:
852 can be fit into 2080 2 times, resulting in a remainder of 376.
Write down 2 as next digit of the result. 
Result so far: 6032.0
If we subtract 1704 from 2080, we get 376.
Fetch the next digit (3) from the dividend, attach it to 376 and continue: 3763 / 852

Going ahead to step 8:
The number 852 fits into 3763 4 times, leaving a remainder of 355.
Write down 4 as next digit of the result. 
Result so far: 60324.0
If we take 3408 away from 3763, we end up with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

On to step 9:
When dividing 3550 by 852, we get 4 with a remainder of 142.
Use 4 as the next digit of our solution. 
Result so far: 60324.4
The remainder is 142 after subtracting 3408 from 3550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Step 10:
When dividing 1420 by 852, we get 1 with a remainder of 568.
Record the quotient 1 as the next digit in the result. 
Result so far: 60324.41
Subtract 852 from 1420 to get 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

On to step 11:
The number 852 fits into 5680 6 times, leaving a remainder of 568.
Use 6 as the next digit of our solution. 
Result so far: 60324.416
If we subtract 5112 from 5680, we get 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Moving on to step 12:
5680 divided by 852 is 6 with a remainder of 568.
Record the quotient 6 as the next digit in the result. 
Result so far: 60324.4166
If we take 5112 away from 5680, we end up with 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

After the division, we end up with 60324.4166 and a remainder of 0.00568.