We look at the division of 66150566 by 315 
Let's see how many times 315 fits into 66150566.

Let's proceed to step 1:
If we divide 6 by 315, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 315

Moving on to step 2:
If we divide 66 by 315, we get 0 and a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Fetch the next digit (1) from the dividend, attach it to 66 and continue: 661 / 315

Advancing to step 3:
315 can be fit into 661 2 times, resulting in a remainder of 31.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 630 from 661 to get 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 315

Advancing to step 4:
315 divided by 315 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 315 away from 315, we end up with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 315

Step 5:
When dividing 0 by 315, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 210.0
If we subtract 0 from 0, we get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 315

Moving on to step 6:
When dividing 5 by 315, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 2100.0
If we subtract 0 from 5, we get 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 315

Going ahead to step 7:
The number 315 fits into 56 0 times, leaving a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 21000.0
Subtracting 0 from 56 leaves us with 56.
Bring next digit (6) of the dividend behind the 56 and repeat the process: 566 / 315

Going ahead to step 8:
The number 315 fits into 566 1 times, leaving a remainder of 251.
Write down 1 as next digit of the result. 
Result so far: 210001.0
If we subtract 315 from 566, we get 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Going ahead to step 9:
The number 315 fits into 2510 7 times, leaving a remainder of 305.
The number 7 becomes the next digit in our result. 
Result so far: 210001.7
Subtract 2205 from 2510 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Advancing to step 10:
When dividing 3050 by 315, we get 9 with a remainder of 215.
Write down 9 as next digit of the result. 
Result so far: 210001.79
Subtracting 2835 from 3050 leaves us with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 11:
If we divide 2150 by 315, we get 6 and a remainder of 260.
Put 6 as the next digit of the answer. 
Result so far: 210001.796
The remainder is 260 after subtracting 1890 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 12:
2600 divided by 315 is 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 210001.7968
Subtracting 2520 from 2600 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
The number 315 fits into 800 2 times, leaving a remainder of 170.
Use 2 as the next digit of our solution. 
Result so far: 210001.79682
If we subtract 630 from 800, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 14:
315 goes into 1700 5 times with a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 210001.796825
If we take 1575 away from 1700, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 15:
The number 315 fits into 1250 3 times, leaving a remainder of 305.
Record the quotient 3 as the next digit in the result. 
Result so far: 210001.7968253
Subtracting 945 from 1250 leaves us with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Going ahead to step 16:
The number 315 fits into 3050 9 times, leaving a remainder of 215.
Put 9 as the next digit of the answer. 
Result so far: 210001.79682539
Subtract 2835 from 3050 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

The final outcome is 210001.79682539, with a leftover of 2.15e-07.