839577 divided by 18 
We're looking to find how many times 18 goes into 839577.

Going ahead to step 1:
18 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 18

Advancing to step 2:
The number 18 fits into 83 4 times, leaving a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 11 after subtracting 72 from 83.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 18

On to step 3:
119 divided by 18 is 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 46.0
Subtract 108 from 119 to get 11.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 18

Going ahead to step 4:
If we divide 115 by 18, we get 6 and a remainder of 7.
The next digit of our result is 6. 
Result so far: 466.0
Subtracting 108 from 115 leaves us with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 18

On to step 5:
If we divide 77 by 18, we get 4 and a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 4664.0
Deduct 72 from 77 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 18

Step 6:
57 divided by 18 is 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 46643.0
Subtract 54 from 57 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
18 can be fit into 30 1 times, resulting in a remainder of 12.
The next digit of our result is 1. 
Result so far: 46643.1
Subtracting 18 from 30 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
18 goes into 120 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 46643.16
Deduct 108 from 120 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
18 goes into 120 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 46643.166
Deduct 108 from 120 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 46643.166, with a leftover of 0.0012.