51186216 ÷ 793 
Let's see how many times 793 fits into 51186216.

On to step 1:
When dividing 5 by 793, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 793

Going ahead to step 2:
793 can be fit into 51 0 times, resulting in a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 793

On to step 3:
793 goes into 511 0 times with a remainder of 511.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 511, we get 511.
Include the next digit (8) from the dividend after 511, then repeat: 5118 / 793

Moving on to step 4:
When dividing 5118 by 793, we get 6 with a remainder of 360.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 4758 from 5118 leaves us with 360.
Fetch the next digit (6) from the dividend, attach it to 360 and continue: 3606 / 793

Step 5:
793 can be fit into 3606 4 times, resulting in a remainder of 434.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Subtracting 3172 from 3606 leaves us with 434.
Include the next digit (2) from the dividend after 434, then repeat: 4342 / 793

Advancing to step 6:
793 can be fit into 4342 5 times, resulting in a remainder of 377.
Put 5 as the next digit of the answer. 
Result so far: 645.0
Deduct 3965 from 4342 and we're left with 377.
Bring next digit (1) of the dividend behind the 377 and repeat the process: 3771 / 793

Step 7:
793 can be fit into 3771 4 times, resulting in a remainder of 599.
The number 4 becomes the next digit in our result. 
Result so far: 6454.0
Subtracting 3172 from 3771 leaves us with 599.
Bring next digit (6) of the dividend behind the 599 and repeat the process: 5996 / 793

Moving on to step 8:
793 goes into 5996 7 times with a remainder of 445.
Use 7 as the next digit of our solution. 
Result so far: 64547.0
Subtracting 5551 from 5996 leaves us with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Step 9:
If we divide 4450 by 793, we get 5 and a remainder of 485.
Write down 5 as next digit of the result. 
Result so far: 64547.5
If we subtract 3965 from 4450, we get 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Step 10:
793 goes into 4850 6 times with a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 64547.56
Subtract 4758 from 4850 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 11:
793 goes into 920 1 times with a remainder of 127.
Put 1 as the next digit of the answer. 
Result so far: 64547.561
If we subtract 793 from 920, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Let's proceed to step 12:
The number 793 fits into 1270 1 times, leaving a remainder of 477.
Use 1 as the next digit of our solution. 
Result so far: 64547.5611
If we subtract 793 from 1270, we get 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

The final result is 64547.5611 with a remainder of 0.00477.