Let's divide 65815515 by 550
We want to divide 65815515 by 550.

Going ahead to step 1:
The number 550 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 550

On to step 2:
When dividing 65 by 550, we get 0 with a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Append the next digit (8) from the dividend to 65 and continue with: 658 / 550

Step 3:
The number 550 fits into 658 1 times, leaving a remainder of 108.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 550 away from 658, we end up with 108.
Take the next digit (1) from the dividend and append it to 108, then repeat: 1081 / 550

Going ahead to step 4:
550 goes into 1081 1 times with a remainder of 531.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 550 from 1081 to get 531.
Bring next digit (5) of the dividend behind the 531 and repeat the process: 5315 / 550

Advancing to step 5:
5315 divided by 550 is 9 with a remainder of 365.
Record the quotient 9 as the next digit in the result. 
Result so far: 119.0
Subtracting 4950 from 5315 leaves us with 365.
Bring next digit (5) of the dividend behind the 365 and repeat the process: 3655 / 550

Advancing to step 6:
3655 divided by 550 is 6 with a remainder of 355.
The number 6 becomes the next digit in our result. 
Result so far: 1196.0
Subtracting 3300 from 3655 leaves us with 355.
Bring next digit (1) of the dividend behind the 355 and repeat the process: 3551 / 550

Moving on to step 7:
550 goes into 3551 6 times with a remainder of 251.
The number 6 becomes the next digit in our result. 
Result so far: 11966.0
If we subtract 3300 from 3551, we get 251.
Append the next digit (5) from the dividend to 251 and continue with: 2515 / 550

Advancing to step 8:
When dividing 2515 by 550, we get 4 with a remainder of 315.
Record the quotient 4 as the next digit in the result. 
Result so far: 119664.0
Subtracting 2200 from 2515 leaves us with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Moving on to step 9:
3150 divided by 550 is 5 with a remainder of 400.
The next digit of our result is 5. 
Result so far: 119664.5
If we subtract 2750 from 3150, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 10:
550 goes into 4000 7 times with a remainder of 150.
Record the quotient 7 as the next digit in the result. 
Result so far: 119664.57
Subtracting 3850 from 4000 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 11:
The number 550 fits into 1500 2 times, leaving a remainder of 400.
Use 2 as the next digit of our solution. 
Result so far: 119664.572
Deduct 1100 from 1500 and we're left 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.

Moving on to step 12:
The number 550 fits into 4000 7 times, leaving a remainder of 150.
Put 7 as the next digit of the answer. 
Result so far: 119664.5727
The remainder is 150 after subtracting 3850 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 13:
1500 divided by 550 is 2 with a remainder of 400.
Record the quotient 2 as the next digit in the result. 
Result so far: 119664.57272
Subtract 1100 from 1500 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 14:
If we divide 4000 by 550, we get 7 and a remainder of 150.
Use 7 as the next digit of our solution. 
Result so far: 119664.572727
Subtracting 3850 from 4000 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 15:
550 goes into 1500 2 times with a remainder of 400.
Put 2 as the next digit of the answer. 
Result so far: 119664.5727272
Subtract 1100 from 1500 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 16:
550 goes into 4000 7 times with a remainder of 150.
Put 7 as the next digit of the answer. 
Result so far: 119664.57272727
The remainder is 150 after subtracting 3850 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 119664.57272727, with a leftover of 1.5e-07.