We're dividing 70341329 by 870 
Let's see how many times 870 fits into 70341329.

Step 1:
870 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 870

On to step 2:
70 divided by 870 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Grab the next digit (3) from the dividend, add it to 70, then carry on: 703 / 870

On to step 3:
870 can be fit into 703 0 times, resulting in a remainder of 703.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 703 leaves us with 703.
Take the next digit (4) from the dividend and append it to 703, then repeat: 7034 / 870

Advancing to step 4:
When dividing 7034 by 870, we get 8 with a remainder of 74.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 6960 from 7034 to get 74.
Fetch the next digit (1) from the dividend, attach it to 74 and continue: 741 / 870

On to step 5:
870 can be fit into 741 0 times, resulting in a remainder of 741.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Subtract 0 from 741 to get 741.
Take the next digit (3) from the dividend and append it to 741, then repeat: 7413 / 870

Let's proceed to step 6:
870 can be fit into 7413 8 times, resulting in a remainder of 453.
The number 8 becomes the next digit in our result. 
Result so far: 808.0
Deduct 6960 from 7413 and we're left with 453.
Append the next digit (2) from the dividend to 453 and continue with: 4532 / 870

Advancing to step 7:
If we divide 4532 by 870, we get 5 and a remainder of 182.
Use 5 as the next digit of our solution. 
Result so far: 8085.0
Subtract 4350 from 4532 to get 182.
Append the next digit (9) from the dividend to 182 and continue with: 1829 / 870

Step 8:
The number 870 fits into 1829 2 times, leaving a remainder of 89.
Record the quotient 2 as the next digit in the result. 
Result so far: 80852.0
Deduct 1740 from 1829 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 9:
The number 870 fits into 890 1 times, leaving a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 80852.1
If we take 870 away from 890, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
870 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 80852.1
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 11:
When dividing 2000 by 870, we get 2 with a remainder of 260.
The number 2 becomes the next digit in our result. 
Result so far: 80852.102
Subtracting 1740 from 2000 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 12:
2600 divided by 870 is 2 with a remainder of 860.
Record the quotient 2 as the next digit in the result. 
Result so far: 80852.1022
Deduct 1740 from 2600 and we're left with 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

In conclusion, the division gives 80852.1022 with a balance of 0.0086.