51225135 ÷ 965 
Our goal is to divide 51225135 by 965.

Advancing to step 1:
5 divided by 965 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in 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 / 965

On to step 2:
965 goes into 51 0 times with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (2) from the dividend and append it to 51, then repeat: 512 / 965

Going ahead to step 3:
965 can be fit into 512 0 times, resulting in a remainder of 512.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 512, we end up with 512.
Include the next digit (2) from the dividend after 512, then repeat: 5122 / 965

Let's proceed to step 4:
The number 965 fits into 5122 5 times, leaving a remainder of 297.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 4825 away from 5122, we end up with 297.
Take the next digit (5) from the dividend and append it to 297, then repeat: 2975 / 965

Going ahead to step 5:
965 goes into 2975 3 times with a remainder of 80.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
The remainder is 80 after subtracting 2895 from 2975.
Include the next digit (1) from the dividend after 80, then repeat: 801 / 965

Going ahead to step 6:
965 can be fit into 801 0 times, resulting in a remainder of 801.
Use 0 as the next digit of our solution. 
Result so far: 530.0
If we take 0 away from 801, we end up with 801.
Grab the next digit (3) from the dividend, add it to 801, then carry on: 8013 / 965

Step 7:
965 goes into 8013 8 times with a remainder of 293.
Write down 8 as next digit of the result. 
Result so far: 5308.0
Subtract 7720 from 8013 to get 293.
Bring next digit (5) of the dividend behind the 293 and repeat the process: 2935 / 965

Step 8:
The number 965 fits into 2935 3 times, leaving a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 53083.0
If we take 2895 away from 2935, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
965 goes into 400 0 times with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 53083.0
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 10:
965 goes into 4000 4 times with a remainder of 140.
The next digit of our result is 4. 
Result so far: 53083.04
The remainder is 140 after subtracting 3860 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 11:
965 can be fit into 1400 1 times, resulting in a remainder of 435.
The number 1 becomes the next digit in our result. 
Result so far: 53083.041
Deduct 965 from 1400 and we're left with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Advancing to step 12:
965 goes into 4350 4 times with a remainder of 490.
Use 4 as the next digit of our solution. 
Result so far: 53083.0414
Subtracting 3860 from 4350 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Going ahead to step 13:
The number 965 fits into 4900 5 times, leaving a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 53083.04145
If we take 4825 away from 4900, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 14:
When dividing 750 by 965, we get 0 with a remainder of 750.
Record the quotient 0 as the next digit in the result. 
Result so far: 53083.04145
The remainder is 750 after subtracting 0 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Step 15:
When dividing 7500 by 965, we get 7 with a remainder of 745.
The next digit of our result is 7. 
Result so far: 53083.0414507
The remainder is 745 after subtracting 6755 from 7500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

On to step 16:
If we divide 7450 by 965, we get 7 and a remainder of 695.
The number 7 becomes the next digit in our result. 
Result so far: 53083.04145077
Deduct 6755 from 7450 and we're left with 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

The final outcome is 53083.04145077, with a leftover of 6.95e-07.