51121804 ÷ 505 
We're looking to find how many times 505 goes into 51121804.

Advancing to step 1:
The number 505 fits into 5 0 times, leaving 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.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 505

Advancing to step 2:
505 goes into 51 0 times with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 505

On to step 3:
The number 505 fits into 511 1 times, leaving a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 505 from 511 leaves us with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 505

Moving on to step 4:
505 goes into 62 0 times with a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 62 after subtracting 0 from 62.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 505

Going ahead to step 5:
621 divided by 505 is 1 with a remainder of 116.
Write down 1 as next digit of the result. 
Result so far: 101.0
Deduct 505 from 621 and we're left with 116.
Bring next digit (8) of the dividend behind the 116 and repeat the process: 1168 / 505

On to step 6:
If we divide 1168 by 505, we get 2 and a remainder of 158.
Write down 2 as next digit of the result. 
Result so far: 1012.0
Deduct 1010 from 1168 and we're left with 158.
Grab the next digit (0) from the dividend, add it to 158, then carry on: 1580 / 505

Moving on to step 7:
When dividing 1580 by 505, we get 3 with a remainder of 65.
Write down 3 as next digit of the result. 
Result so far: 10123.0
If we subtract 1515 from 1580, we get 65.
Include the next digit (4) from the dividend after 65, then repeat: 654 / 505

On to step 8:
654 divided by 505 is 1 with a remainder of 149.
The number 1 becomes the next digit in our result. 
Result so far: 101231.0
Subtracting 505 from 654 leaves us with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 9:
The number 505 fits into 1490 2 times, leaving a remainder of 480.
Use 2 as the next digit of our solution. 
Result so far: 101231.2
Subtracting 1010 from 1490 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 10:
505 can be fit into 4800 9 times, resulting in a remainder of 255.
The next digit of our result is 9. 
Result so far: 101231.29
Subtracting 4545 from 4800 leaves us with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 11:
505 can be fit into 2550 5 times, resulting in a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 101231.295
If we subtract 2525 from 2550, we 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.

On to step 12:
505 can be fit into 250 0 times, resulting in a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 101231.295
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 13:
The number 505 fits into 2500 4 times, leaving a remainder of 480.
Write down 4 as next digit of the result. 
Result so far: 101231.29504
If we subtract 2020 from 2500, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 14:
When dividing 4800 by 505, we get 9 with a remainder of 255.
Record the quotient 9 as the next digit in the result. 
Result so far: 101231.295049
Subtracting 4545 from 4800 leaves us with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 15:
2550 divided by 505 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 101231.2950495
Deduct 2525 from 2550 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 16:
505 goes into 250 0 times with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 101231.2950495
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The final outcome is 101231.2950495, with a leftover of 2.5e-07.