We're dividing 369915 by 86 
We're looking to find how many times 86 goes into 369915.

Advancing to step 1:
When dividing 3 by 86, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 86

Let's proceed to step 2:
The number 86 fits into 36 0 times, leaving a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 36 and we're left with 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 86

On to step 3:
86 goes into 369 4 times with a remainder of 25.
The next digit of our result is 4. 
Result so far: 4.0
If we take 344 away from 369, we end up with 25.
Fetch the next digit (9) from the dividend, attach it to 25 and continue: 259 / 86

Moving on to step 4:
259 divided by 86 is 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtracting 258 from 259 leaves us with 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 86

Moving on to step 5:
86 goes into 11 0 times with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 430.0
If we take 0 away from 11, we end up with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 86

Step 6:
If we divide 115 by 86, we get 1 and a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 4301.0
If we take 86 away from 115, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 7:
86 goes into 290 3 times with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 4301.3
Subtracting 258 from 290 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
When dividing 320 by 86, we get 3 with a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 4301.33
The remainder is 62 after subtracting 258 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final result is 4301.33 with a remainder of 0.062.