We look at the division of 66512517 by 274 
We want to divide 66512517 by 274.

Advancing to step 1:
274 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 274

Moving on to step 2:
66 divided by 274 is 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Include the next digit (5) from the dividend after 66, then repeat: 665 / 274

Going ahead to step 3:
665 divided by 274 is 2 with a remainder of 117.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 548 from 665, we get 117.
Append the next digit (1) from the dividend to 117 and continue with: 1171 / 274

Moving on to step 4:
274 goes into 1171 4 times with a remainder of 75.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Deduct 1096 from 1171 and we're left with 75.
Grab the next digit (2) from the dividend, add it to 75, then carry on: 752 / 274

On to step 5:
If we divide 752 by 274, we get 2 and a remainder of 204.
The next digit of our result is 2. 
Result so far: 242.0
Deduct 548 from 752 and we're left with 204.
Append the next digit (5) from the dividend to 204 and continue with: 2045 / 274

Moving on to step 6:
The number 274 fits into 2045 7 times, leaving a remainder of 127.
The number 7 becomes the next digit in our result. 
Result so far: 2427.0
Subtract 1918 from 2045 to get 127.
Append the next digit (1) from the dividend to 127 and continue with: 1271 / 274

Going ahead to step 7:
1271 divided by 274 is 4 with a remainder of 175.
Use 4 as the next digit of our solution. 
Result so far: 24274.0
Subtracting 1096 from 1271 leaves us with 175.
Include the next digit (7) from the dividend after 175, then repeat: 1757 / 274

Let's proceed to step 8:
1757 divided by 274 is 6 with a remainder of 113.
Put 6 as the next digit of the answer. 
Result so far: 242746.0
Subtract 1644 from 1757 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

On to step 9:
1130 divided by 274 is 4 with a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 242746.4
Subtracting 1096 from 1130 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 10:
If we divide 340 by 274, we get 1 and a remainder of 66.
Use 1 as the next digit of our solution. 
Result so far: 242746.41
Subtract 274 from 340 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 11:
660 divided by 274 is 2 with a remainder of 112.
Write down 2 as next digit of the result. 
Result so far: 242746.412
The remainder is 112 after subtracting 548 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 12:
If we divide 1120 by 274, we get 4 and a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 242746.4124
Deduct 1096 from 1120 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 13:
274 can be fit into 240 0 times, resulting in a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 242746.4124
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 14:
274 can be fit into 2400 8 times, resulting in a remainder of 208.
Use 8 as the next digit of our solution. 
Result so far: 242746.412408
Subtract 2192 from 2400 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 15:
The number 274 fits into 2080 7 times, leaving a remainder of 162.
Write down 7 as next digit of the result. 
Result so far: 242746.4124087
Deduct 1918 from 2080 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 16:
1620 divided by 274 is 5 with a remainder of 250.
The next digit of our result is 5. 
Result so far: 242746.41240875
Subtract 1370 from 1620 to get 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 result is 242746.41240875 with a remainder of 2.5e-07.