90602688 divided by 216 
We're looking to find how many times 216 goes into 90602688.

On to step 1:
If we divide 9 by 216, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 216

Going ahead to step 2:
The number 216 fits into 90 0 times, leaving a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Take the next digit (6) from the dividend and append it to 90, then repeat: 906 / 216

Going ahead to step 3:
216 can be fit into 906 4 times, resulting in a remainder of 42.
The next digit of our result is 4. 
Result so far: 4.0
If we take 864 away from 906, we end up with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 216

Let's proceed to step 4:
If we divide 420 by 216, we get 1 and a remainder of 204.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
If we subtract 216 from 420, we get 204.
Fetch the next digit (2) from the dividend, attach it to 204 and continue: 2042 / 216

Let's proceed to step 5:
2042 divided by 216 is 9 with a remainder of 98.
Use 9 as the next digit of our solution. 
Result so far: 419.0
Deduct 1944 from 2042 and we're left with 98.
Grab the next digit (6) from the dividend, add it to 98, then carry on: 986 / 216

Moving on to step 6:
216 goes into 986 4 times with a remainder of 122.
Use 4 as the next digit of our solution. 
Result so far: 4194.0
Subtracting 864 from 986 leaves us with 122.
Fetch the next digit (8) from the dividend, attach it to 122 and continue: 1228 / 216

Advancing to step 7:
The number 216 fits into 1228 5 times, leaving a remainder of 148.
The next digit of our result is 5. 
Result so far: 41945.0
Deduct 1080 from 1228 and we're left with 148.
Bring next digit (8) of the dividend behind the 148 and repeat the process: 1488 / 216

Let's proceed to step 8:
When dividing 1488 by 216, we get 6 with a remainder of 192.
Put 6 as the next digit of the answer. 
Result so far: 419456.0
The remainder is 192 after subtracting 1296 from 1488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 9:
1920 divided by 216 is 8 with a remainder of 192.
Write down 8 as next digit of the result. 
Result so far: 419456.8
If we take 1728 away from 1920, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 10:
If we divide 1920 by 216, we get 8 and a remainder of 192.
Put 8 as the next digit of the answer. 
Result so far: 419456.88
The remainder is 192 after subtracting 1728 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

The final result is 419456.88 with a remainder of 0.192.