86402 ÷ 79 
We want to figure out the number of times 86402 can be divided by 79.

On to step 1:
If we divide 8 by 79, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 79

Step 2:
If we divide 86 by 79, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 79 from 86 leaves us with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 79

Advancing to step 3:
When dividing 74 by 79, we get 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 74 and we're left with 74.
Take the next digit (0) from the dividend and append it to 74, then repeat: 740 / 79

Going ahead to step 4:
When dividing 740 by 79, we get 9 with a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 109.0
Subtracting 711 from 740 leaves us with 29.
Bring next digit (2) of the dividend behind the 29 and repeat the process: 292 / 79

Going ahead to step 5:
79 goes into 292 3 times with a remainder of 55.
Record the quotient 3 as the next digit in the result. 
Result so far: 1093.0
If we subtract 237 from 292, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 6:
When dividing 550 by 79, we get 6 with a remainder of 76.
Write down 6 as next digit of the result. 
Result so far: 1093.6
If we subtract 474 from 550, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 7:
79 goes into 760 9 times with a remainder of 49.
The next digit of our result is 9. 
Result so far: 1093.69
Subtract 711 from 760 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 8:
When dividing 490 by 79, we get 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 1093.696
Subtracting 474 from 490 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
The number 79 fits into 160 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 1093.6962
The remainder is 2 after subtracting 158 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 10:
If we divide 20 by 79, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 1093.6962
The remainder is 20 after subtracting 0 from 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 11:
When dividing 200 by 79, we get 2 with a remainder of 42.
The next digit of our result is 2. 
Result so far: 1093.696202
The remainder is 42 after subtracting 158 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 12:
420 divided by 79 is 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 1093.6962025
Subtracting 395 from 420 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 13:
The number 79 fits into 250 3 times, leaving a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 1093.69620253
Deduct 237 from 250 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 1093.69620253 with a balance of 1.3e-08.