We're dividing 84365570 by 215 
We want to figure out the number of times 84365570 can be divided by 215.

Advancing to step 1:
215 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 215

On to step 2:
The number 215 fits into 84 0 times, leaving a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Include the next digit (3) from the dividend after 84, then repeat: 843 / 215

Moving on to step 3:
The number 215 fits into 843 3 times, leaving a remainder of 198.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 198 after subtracting 645 from 843.
Grab the next digit (6) from the dividend, add it to 198, then carry on: 1986 / 215

Let's proceed to step 4:
215 goes into 1986 9 times with a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 39.0
Deduct 1935 from 1986 and we're left with 51.
Grab the next digit (5) from the dividend, add it to 51, then carry on: 515 / 215

Step 5:
When dividing 515 by 215, we get 2 with a remainder of 85.
Record the quotient 2 as the next digit in the result. 
Result so far: 392.0
The remainder is 85 after subtracting 430 from 515.
Append the next digit (5) from the dividend to 85 and continue with: 855 / 215

Going ahead to step 6:
If we divide 855 by 215, we get 3 and a remainder of 210.
Put 3 as the next digit of the answer. 
Result so far: 3923.0
The remainder is 210 after subtracting 645 from 855.
Fetch the next digit (7) from the dividend, attach it to 210 and continue: 2107 / 215

Let's proceed to step 7:
215 goes into 2107 9 times with a remainder of 172.
Write down 9 as next digit of the result. 
Result so far: 39239.0
Subtracting 1935 from 2107 leaves us with 172.
Fetch the next digit (0) from the dividend, attach it to 172 and continue: 1720 / 215

Advancing to step 8:
If we divide 1720 by 215, we get 8 and a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 392398.0
The remainder is 0 after subtracting 1720 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 215, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 392398.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
When dividing 0 by 215, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 392398.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 392398.0 with a remaining 0.0.