We're dividing 863555 by 60 
We want to figure out the number of times 863555 can be divided by 60.

Step 1:
60 goes into 8 0 times with 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.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 60

Advancing to step 2:
60 goes into 86 1 times with a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 60 away from 86, we end up with 26.
Append the next digit (3) from the dividend to 26 and continue with: 263 / 60

Step 3:
If we divide 263 by 60, we get 4 and a remainder of 23.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 240 from 263 leaves us with 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 60

Going ahead to step 4:
If we divide 235 by 60, we get 3 and a remainder of 55.
The next digit of our result is 3. 
Result so far: 143.0
Deduct 180 from 235 and we're left with 55.
Take the next digit (5) from the dividend and append it to 55, then repeat: 555 / 60

Step 5:
When dividing 555 by 60, we get 9 with a remainder of 15.
The next digit of our result is 9. 
Result so far: 1439.0
Subtract 540 from 555 to get 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 60

Step 6:
60 goes into 155 2 times with a remainder of 35.
Record the quotient 2 as the next digit in the result. 
Result so far: 14392.0
Deduct 120 from 155 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
60 goes into 350 5 times with a remainder of 50.
The next digit of our result is 5. 
Result so far: 14392.5
If we take 300 away from 350, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 8:
When dividing 500 by 60, we get 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 14392.58
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
The number 60 fits into 200 3 times, leaving a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 14392.583
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
If we divide 200 by 60, we get 3 and a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 14392.5833
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 14392.5833 with a remainder of 0.0002.