We look at the division of 80435432 by 86 
Let's see how many times 86 fits into 80435432.

Step 1:
8 divided by 86 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 86

Let's proceed to step 2:
The number 86 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Bring next digit (4) of the dividend behind the 80 and repeat the process: 804 / 86

Going ahead to step 3:
When dividing 804 by 86, we get 9 with a remainder of 30.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 30 after subtracting 774 from 804.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 86

Let's proceed to step 4:
86 can be fit into 303 3 times, resulting in a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 93.0
If we subtract 258 from 303, we get 45.
Grab the next digit (5) from the dividend, add it to 45, then carry on: 455 / 86

On to step 5:
455 divided by 86 is 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 935.0
If we take 430 away from 455, we end up with 25.
Include the next digit (4) from the dividend after 25, then repeat: 254 / 86

Let's proceed to step 6:
If we divide 254 by 86, we get 2 and a remainder of 82.
Put 2 as the next digit of the answer. 
Result so far: 9352.0
Deduct 172 from 254 and we're left with 82.
Fetch the next digit (3) from the dividend, attach it to 82 and continue: 823 / 86

Moving on to step 7:
86 goes into 823 9 times with a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 93529.0
Deduct 774 from 823 and we're left with 49.
Bring next digit (2) of the dividend behind the 49 and repeat the process: 492 / 86

Let's proceed to step 8:
When dividing 492 by 86, we get 5 with a remainder of 62.
The next digit of our result is 5. 
Result so far: 935295.0
If we subtract 430 from 492, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 9:
620 divided by 86 is 7 with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 935295.7
If we take 602 away from 620, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 10:
The number 86 fits into 180 2 times, leaving a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 935295.72
Subtract 172 from 180 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
The number 86 fits into 80 0 times, leaving a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 935295.72
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
86 goes into 800 9 times with a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 935295.7209
If we subtract 774 from 800, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 13:
86 can be fit into 260 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 935295.72093
Subtracting 258 from 260 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 14:
The number 86 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 935295.72093
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.

Going ahead to step 15:
200 divided by 86 is 2 with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 935295.7209302
The remainder is 28 after subtracting 172 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 16:
When dividing 280 by 86, we get 3 with a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 935295.72093023
Deduct 258 from 280 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final result is 935295.72093023 with a remainder of 2.2e-08.