We look at the division of 660510 by 70 
Let's see how many times 70 fits into 660510.

On to step 1:
The number 70 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 70

Going ahead to step 2:
When dividing 66 by 70, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Append the next digit (0) from the dividend to 66 and continue with: 660 / 70

Moving on to step 3:
70 can be fit into 660 9 times, resulting in a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 630 from 660 to get 30.
Fetch the next digit (5) from the dividend, attach it to 30 and continue: 305 / 70

Moving on to step 4:
When dividing 305 by 70, we get 4 with a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 94.0
Deduct 280 from 305 and we're left with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 70

Step 5:
If we divide 251 by 70, we get 3 and a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 943.0
Deduct 210 from 251 and we're left with 41.
Grab the next digit (0) from the dividend, add it to 41, then carry on: 410 / 70

Moving on to step 6:
410 divided by 70 is 5 with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 9435.0
Subtract 350 from 410 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 7:
The number 70 fits into 600 8 times, leaving a remainder of 40.
The next digit of our result is 8. 
Result so far: 9435.8
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
70 can be fit into 400 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 9435.85
If we subtract 350 from 400, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
70 can be fit into 500 7 times, resulting in a remainder of 10.
The next digit of our result is 7. 
Result so far: 9435.857
Deduct 490 from 500 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
70 goes into 100 1 times with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 9435.8571
Deduct 70 from 100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 11:
When dividing 300 by 70, we get 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 9435.85714
Subtract 280 from 300 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
If we divide 200 by 70, we get 2 and a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 9435.857142
Deduct 140 from 200 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 13:
70 can be fit into 600 8 times, resulting in a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 9435.8571428
Deduct 560 from 600 and we're left 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.

Let's proceed to step 14:
70 can be fit into 400 5 times, resulting in a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 9435.85714285
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 9435.85714285 with a balance of 5e-08.