8600450 divided by 405 
We want to figure out the number of times 8600450 can be divided by 405.

On to step 1:
8 divided by 405 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 405

Let's proceed to step 2:
When dividing 86 by 405, we get 0 with 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.
Include the next digit (0) from the dividend after 86, then repeat: 860 / 405

Let's proceed to step 3:
The number 405 fits into 860 2 times, leaving a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 810 away from 860, we end up with 50.
Grab the next digit (0) from the dividend, add it to 50, then carry on: 500 / 405

On to step 4:
When dividing 500 by 405, we get 1 with a remainder of 95.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtracting 405 from 500 leaves us with 95.
Include the next digit (4) from the dividend after 95, then repeat: 954 / 405

Moving on to step 5:
405 goes into 954 2 times with a remainder of 144.
The number 2 becomes the next digit in our result. 
Result so far: 212.0
Subtracting 810 from 954 leaves us with 144.
Take the next digit (5) from the dividend and append it to 144, then repeat: 1445 / 405

Step 6:
The number 405 fits into 1445 3 times, leaving a remainder of 230.
Record the quotient 3 as the next digit in the result. 
Result so far: 2123.0
Deduct 1215 from 1445 and we're left with 230.
Include the next digit (0) from the dividend after 230, then repeat: 2300 / 405

Going ahead to step 7:
405 goes into 2300 5 times with a remainder of 275.
Use 5 as the next digit of our solution. 
Result so far: 21235.0
Deduct 2025 from 2300 and we're left with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 8:
405 goes into 2750 6 times with a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 21235.6
Subtract 2430 from 2750 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 9:
405 can be fit into 3200 7 times, resulting in a remainder of 365.
Write down 7 as next digit of the result. 
Result so far: 21235.67
Subtracting 2835 from 3200 leaves us with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Step 10:
405 can be fit into 3650 9 times, resulting in a remainder of 5.
The next digit of our result is 9. 
Result so far: 21235.679
Deduct 3645 from 3650 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
The number 405 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 21235.679
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
405 can be fit into 500 1 times, resulting in a remainder of 95.
The next digit of our result is 1. 
Result so far: 21235.67901
If we subtract 405 from 500, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 13:
If we divide 950 by 405, we get 2 and a remainder of 140.
Write down 2 as next digit of the result. 
Result so far: 21235.679012
If we take 810 away from 950, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 14:
1400 divided by 405 is 3 with a remainder of 185.
Put 3 as the next digit of the answer. 
Result so far: 21235.6790123
The remainder is 185 after subtracting 1215 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 15:
If we divide 1850 by 405, we get 4 and a remainder of 230.
The next digit of our result is 4. 
Result so far: 21235.67901234
The remainder is 230 after subtracting 1620 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The final outcome is 21235.67901234, with a leftover of 2.3e-07.