We're dividing 431099 by 8 
We want to figure out the number of times 431099 can be divided by 8.

Advancing to step 1:
The number 8 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 8

Moving on to step 2:
8 can be fit into 43 5 times, resulting in a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 40 away from 43, we end up with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 8

Moving on to step 3:
8 can be fit into 31 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
The remainder is 7 after subtracting 24 from 31.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 8

Step 4:
If we divide 70 by 8, we get 8 and a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 538.0
Subtracting 64 from 70 leaves us with 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 8

Step 5:
8 goes into 69 8 times with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 5388.0
Subtracting 64 from 69 leaves us with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 8

Step 6:
If we divide 59 by 8, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 53887.0
If we take 56 away from 59, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
The number 8 fits into 30 3 times, leaving a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 53887.3
Subtract 24 from 30 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
The number 8 fits into 60 7 times, leaving a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 53887.37
Subtracting 56 from 60 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
8 can be fit into 40 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 53887.375
Deduct 40 from 40 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
0 divided by 8 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 53887.375
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 53887.375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 53887.375 and a remainder of 0.0.