51814654 ÷ 10 
We're looking to find how many times 10 goes into 51814654.

Step 1:
When dividing 5 by 10, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 10

Going ahead to step 2:
If we divide 51 by 10, we get 5 and a remainder of 1.
The next digit of our result is 5. 
Result so far: 5.0
If we take 50 away from 51, we end up with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 10

Moving on to step 3:
The number 10 fits into 18 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 51.0
Subtract 10 from 18 to get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 10

Going ahead to step 4:
81 divided by 10 is 8 with a remainder of 1.
The next digit of our result is 8. 
Result so far: 518.0
If we subtract 80 from 81, we get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 10

Advancing to step 5:
When dividing 14 by 10, we get 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 5181.0
Subtracting 10 from 14 leaves us with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 10

On to step 6:
10 can be fit into 46 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 51814.0
If we take 40 away from 46, we end up with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 10

Going ahead to step 7:
65 divided by 10 is 6 with a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 518146.0
The remainder is 5 after subtracting 60 from 65.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 10

On to step 8:
10 goes into 54 5 times with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5181465.0
Deduct 50 from 54 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
10 goes into 40 4 times with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 5181465.4
Deduct 40 from 40 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
0 divided by 10 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5181465.4
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
0 divided by 10 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5181465.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 5181465.4, with a leftover of 0.0.