We divide 86425397 by 909
We're looking to find how many times 909 goes into 86425397.

On to step 1:
If we divide 8 by 909, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 909

Step 2:
If we divide 86 by 909, we get 0 and a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Fetch the next digit (4) from the dividend, attach it to 86 and continue: 864 / 909

Let's proceed to step 3:
864 divided by 909 is 0 with a remainder of 864.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 864 to get 864.
Bring next digit (2) of the dividend behind the 864 and repeat the process: 8642 / 909

Let's proceed to step 4:
909 goes into 8642 9 times with a remainder of 461.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 461 after subtracting 8181 from 8642.
Include the next digit (5) from the dividend after 461, then repeat: 4615 / 909

Advancing to step 5:
When dividing 4615 by 909, we get 5 with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 95.0
Subtract 4545 from 4615 to get 70.
Append the next digit (3) from the dividend to 70 and continue with: 703 / 909

Going ahead to step 6:
The number 909 fits into 703 0 times, leaving a remainder of 703.
Put 0 as the next digit of the answer. 
Result so far: 950.0
If we subtract 0 from 703, we get 703.
Include the next digit (9) from the dividend after 703, then repeat: 7039 / 909

On to step 7:
When dividing 7039 by 909, we get 7 with a remainder of 676.
Use 7 as the next digit of our solution. 
Result so far: 9507.0
If we subtract 6363 from 7039, we get 676.
Include the next digit (7) from the dividend after 676, then repeat: 6767 / 909

Moving on to step 8:
The number 909 fits into 6767 7 times, leaving a remainder of 404.
Use 7 as the next digit of our solution. 
Result so far: 95077.0
If we subtract 6363 from 6767, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 9:
909 can be fit into 4040 4 times, resulting in a remainder of 404.
Write down 4 as next digit of the result. 
Result so far: 95077.4
If we take 3636 away from 4040, we end up with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Advancing to step 10:
909 can be fit into 4040 4 times, resulting in a remainder of 404.
The number 4 becomes the next digit in our result. 
Result so far: 95077.44
If we take 3636 away from 4040, we end up with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

The final outcome is 95077.44, with a leftover of 0.404.