70880830 divided by 509 
Our goal is to divide 70880830 by 509.

Going ahead to step 1:
When dividing 7 by 509, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 509

Step 2:
If we divide 70 by 509, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Append the next digit (8) from the dividend to 70 and continue with: 708 / 509

On to step 3:
If we divide 708 by 509, we get 1 and a remainder of 199.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 509 away from 708, we end up with 199.
Take the next digit (8) from the dividend and append it to 199, then repeat: 1998 / 509

Let's proceed to step 4:
The number 509 fits into 1998 3 times, leaving a remainder of 471.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 1527 from 1998 leaves us with 471.
Bring next digit (0) of the dividend behind the 471 and repeat the process: 4710 / 509

On to step 5:
4710 divided by 509 is 9 with a remainder of 129.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
The remainder is 129 after subtracting 4581 from 4710.
Grab the next digit (8) from the dividend, add it to 129, then carry on: 1298 / 509

Step 6:
When dividing 1298 by 509, we get 2 with a remainder of 280.
Record the quotient 2 as the next digit in the result. 
Result so far: 1392.0
Subtract 1018 from 1298 to get 280.
Grab the next digit (3) from the dividend, add it to 280, then carry on: 2803 / 509

Step 7:
2803 divided by 509 is 5 with a remainder of 258.
Put 5 as the next digit of the answer. 
Result so far: 13925.0
Deduct 2545 from 2803 and we're left with 258.
Include the next digit (0) from the dividend after 258, then repeat: 2580 / 509

Let's proceed to step 8:
509 goes into 2580 5 times with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 139255.0
If we subtract 2545 from 2580, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
The number 509 fits into 350 0 times, leaving a remainder of 350.
Put 0 as the next digit of the answer. 
Result so far: 139255.0
The remainder is 350 after subtracting 0 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 10:
When dividing 3500 by 509, we get 6 with a remainder of 446.
Write down 6 as next digit of the result. 
Result so far: 139255.06
Subtract 3054 from 3500 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 11:
The number 509 fits into 4460 8 times, leaving a remainder of 388.
Write down 8 as next digit of the result. 
Result so far: 139255.068
Deduct 4072 from 4460 and we're left with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 12:
The number 509 fits into 3880 7 times, leaving a remainder of 317.
The number 7 becomes the next digit in our result. 
Result so far: 139255.0687
If we take 3563 away from 3880, we end up with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

On to step 13:
If we divide 3170 by 509, we get 6 and a remainder of 116.
Write down 6 as next digit of the result. 
Result so far: 139255.06876
Subtract 3054 from 3170 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 14:
1160 divided by 509 is 2 with a remainder of 142.
Put 2 as the next digit of the answer. 
Result so far: 139255.068762
Subtracting 1018 from 1160 leaves us with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 15:
1420 divided by 509 is 2 with a remainder of 402.
The number 2 becomes the next digit in our result. 
Result so far: 139255.0687622
Deduct 1018 from 1420 and we're left with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

The final outcome is 139255.0687622, with a leftover of 4.02e-06.