66203265 ÷ 51 
Our goal is to divide 66203265 by 51.

Moving on to step 1:
When dividing 6 by 51, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 51

On to step 2:
66 divided by 51 is 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 15 after subtracting 51 from 66.
Include the next digit (2) from the dividend after 15, then repeat: 152 / 51

Step 3:
The number 51 fits into 152 2 times, leaving a remainder of 50.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 102 from 152, we get 50.
Append the next digit (0) from the dividend to 50 and continue with: 500 / 51

Advancing to step 4:
51 can be fit into 500 9 times, resulting in a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 129.0
If we subtract 459 from 500, we get 41.
Include the next digit (3) from the dividend after 41, then repeat: 413 / 51

Moving on to step 5:
51 goes into 413 8 times with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 1298.0
Subtract 408 from 413 to get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 51

Let's proceed to step 6:
52 divided by 51 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 12981.0
The remainder is 1 after subtracting 51 from 52.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 51

Going ahead to step 7:
The number 51 fits into 16 0 times, leaving a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 129810.0
If we subtract 0 from 16, we get 16.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 51

Moving on to step 8:
When dividing 165 by 51, we get 3 with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 1298103.0
Subtract 153 from 165 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
51 goes into 120 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 1298103.2
Deduct 102 from 120 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
51 goes into 180 3 times with a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 1298103.23
Deduct 153 from 180 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 11:
If we divide 270 by 51, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 1298103.235
If we take 255 away from 270, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 12:
When dividing 150 by 51, we get 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 1298103.2352
Subtract 102 from 150 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 13:
480 divided by 51 is 9 with a remainder of 21.
The next digit of our result is 9. 
Result so far: 1298103.23529
Subtract 459 from 480 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 14:
If we divide 210 by 51, we get 4 and a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 1298103.235294
If we take 204 away from 210, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 15:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1298103.2352941
The remainder is 9 after subtracting 51 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 16:
90 divided by 51 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 1298103.23529411
Deduct 51 from 90 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 1298103.23529411 and a remainder of 3.9e-08.