79513961 ÷ 870 
Let's see how many times 870 fits into 79513961.

Let's proceed to step 1:
When dividing 7 by 870, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 870

Going ahead to step 2:
The number 870 fits into 79 0 times, leaving a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Fetch the next digit (5) from the dividend, attach it to 79 and continue: 795 / 870

Moving on to step 3:
870 goes into 795 0 times with a remainder of 795.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 795 leaves us with 795.
Take the next digit (1) from the dividend and append it to 795, then repeat: 7951 / 870

Let's proceed to step 4:
If we divide 7951 by 870, we get 9 and a remainder of 121.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 7830 away from 7951, we end up with 121.
Fetch the next digit (3) from the dividend, attach it to 121 and continue: 1213 / 870

Moving on to step 5:
The number 870 fits into 1213 1 times, leaving a remainder of 343.
Record the quotient 1 as the next digit in the result. 
Result so far: 91.0
If we take 870 away from 1213, we end up with 343.
Grab the next digit (9) from the dividend, add it to 343, then carry on: 3439 / 870

On to step 6:
The number 870 fits into 3439 3 times, leaving a remainder of 829.
Use 3 as the next digit of our solution. 
Result so far: 913.0
If we take 2610 away from 3439, we end up with 829.
Grab the next digit (6) from the dividend, add it to 829, then carry on: 8296 / 870

Let's proceed to step 7:
If we divide 8296 by 870, we get 9 and a remainder of 466.
Use 9 as the next digit of our solution. 
Result so far: 9139.0
Subtracting 7830 from 8296 leaves us with 466.
Bring next digit (1) of the dividend behind the 466 and repeat the process: 4661 / 870

Let's proceed to step 8:
4661 divided by 870 is 5 with a remainder of 311.
Record the quotient 5 as the next digit in the result. 
Result so far: 91395.0
Deduct 4350 from 4661 and we're left with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

On to step 9:
The number 870 fits into 3110 3 times, leaving a remainder of 500.
Put 3 as the next digit of the answer. 
Result so far: 91395.3
Deduct 2610 from 3110 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 10:
When dividing 5000 by 870, we get 5 with a remainder of 650.
The next digit of our result is 5. 
Result so far: 91395.35
Subtracting 4350 from 5000 leaves us with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Advancing to step 11:
6500 divided by 870 is 7 with a remainder of 410.
Use 7 as the next digit of our solution. 
Result so far: 91395.357
The remainder is 410 after subtracting 6090 from 6500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 12:
4100 divided by 870 is 4 with a remainder of 620.
The number 4 becomes the next digit in our result. 
Result so far: 91395.3574
If we subtract 3480 from 4100, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Going ahead to step 13:
When dividing 6200 by 870, we get 7 with a remainder of 110.
Put 7 as the next digit of the answer. 
Result so far: 91395.35747
Subtract 6090 from 6200 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 14:
870 can be fit into 1100 1 times, resulting in a remainder of 230.
Write down 1 as next digit of the result. 
Result so far: 91395.357471
If we take 870 away from 1100, we end up with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 15:
The number 870 fits into 2300 2 times, leaving a remainder of 560.
Put 2 as the next digit of the answer. 
Result so far: 91395.3574712
Deduct 1740 from 2300 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 16:
870 can be fit into 5600 6 times, resulting in a remainder of 380.
Use 6 as the next digit of our solution. 
Result so far: 91395.35747126
Deduct 5220 from 5600 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

In conclusion, the division gives 91395.35747126 with a balance of 3.8e-07.