86784413 divided by 431 
We want to figure out the number of times 86784413 can be divided by 431.

Let's proceed to step 1:
The number 431 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 431

Let's proceed to step 2:
When dividing 86 by 431, we get 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Append the next digit (7) from the dividend to 86 and continue with: 867 / 431

Going ahead to step 3:
When dividing 867 by 431, we get 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 862 from 867 leaves us with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 431

Going ahead to step 4:
58 divided by 431 is 0 with a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 58, we get 58.
Append the next digit (4) from the dividend to 58 and continue with: 584 / 431

Advancing to step 5:
584 divided by 431 is 1 with a remainder of 153.
Use 1 as the next digit of our solution. 
Result so far: 201.0
The remainder is 153 after subtracting 431 from 584.
Fetch the next digit (4) from the dividend, attach it to 153 and continue: 1534 / 431

Let's proceed to step 6:
431 can be fit into 1534 3 times, resulting in a remainder of 241.
Put 3 as the next digit of the answer. 
Result so far: 2013.0
Subtracting 1293 from 1534 leaves us with 241.
Append the next digit (1) from the dividend to 241 and continue with: 2411 / 431

On to step 7:
2411 divided by 431 is 5 with a remainder of 256.
Use 5 as the next digit of our solution. 
Result so far: 20135.0
Subtracting 2155 from 2411 leaves us with 256.
Fetch the next digit (3) from the dividend, attach it to 256 and continue: 2563 / 431

Moving on to step 8:
431 can be fit into 2563 5 times, resulting in a remainder of 408.
The next digit of our result is 5. 
Result so far: 201355.0
If we take 2155 away from 2563, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Let's proceed to step 9:
431 goes into 4080 9 times with a remainder of 201.
The number 9 becomes the next digit in our result. 
Result so far: 201355.9
If we take 3879 away from 4080, we end up with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Step 10:
When dividing 2010 by 431, we get 4 with a remainder of 286.
The next digit of our result is 4. 
Result so far: 201355.94
Deduct 1724 from 2010 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Let's proceed to step 11:
431 goes into 2860 6 times with a remainder of 274.
The number 6 becomes the next digit in our result. 
Result so far: 201355.946
If we subtract 2586 from 2860, we get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 12:
The number 431 fits into 2740 6 times, leaving a remainder of 154.
The number 6 becomes the next digit in our result. 
Result so far: 201355.9466
If we take 2586 away from 2740, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The quotient of the division is 201355.9466, and the remainder is 0.00154.