51261554 ÷ 508 
We want to figure out the number of times 51261554 can be divided by 508.

On to step 1:
508 can be fit into 5 0 times, resulting in 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.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 508

Going ahead to step 2:
508 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 (2) from the dividend, add it to 51, then carry on: 512 / 508

Step 3:
508 goes into 512 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 508 away from 512, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 508

On to step 4:
508 can be fit into 46 0 times, resulting in a remainder of 46.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 46 to get 46.
Bring next digit (1) of the dividend behind the 46 and repeat the process: 461 / 508

Going ahead to step 5:
The number 508 fits into 461 0 times, leaving a remainder of 461.
The next digit of our result is 0. 
Result so far: 100.0
Subtract 0 from 461 to get 461.
Take the next digit (5) from the dividend and append it to 461, then repeat: 4615 / 508

Step 6:
If we divide 4615 by 508, we get 9 and a remainder of 43.
Write down 9 as next digit of the result. 
Result so far: 1009.0
Subtracting 4572 from 4615 leaves us with 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 508

Step 7:
435 divided by 508 is 0 with a remainder of 435.
Use 0 as the next digit of our solution. 
Result so far: 10090.0
Subtract 0 from 435 to get 435.
Grab the next digit (4) from the dividend, add it to 435, then carry on: 4354 / 508

On to step 8:
The number 508 fits into 4354 8 times, leaving a remainder of 290.
Put 8 as the next digit of the answer. 
Result so far: 100908.0
If we subtract 4064 from 4354, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Going ahead to step 9:
If we divide 2900 by 508, we get 5 and a remainder of 360.
The next digit of our result is 5. 
Result so far: 100908.5
Subtracting 2540 from 2900 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 10:
When dividing 3600 by 508, we get 7 with a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 100908.57
The remainder is 44 after subtracting 3556 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 11:
When dividing 440 by 508, we get 0 with a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 100908.57
If we subtract 0 from 440, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 12:
When dividing 4400 by 508, we get 8 with a remainder of 336.
Use 8 as the next digit of our solution. 
Result so far: 100908.5708
Subtracting 4064 from 4400 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 13:
508 goes into 3360 6 times with a remainder of 312.
Use 6 as the next digit of our solution. 
Result so far: 100908.57086
Deduct 3048 from 3360 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Let's proceed to step 14:
If we divide 3120 by 508, we get 6 and a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 100908.570866
If we subtract 3048 from 3120, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Our division results in 100908.570866 with a remaining 7.2e-06.