Let's divide 90213578 by 8
Let's see how many times 8 fits into 90213578.

Let's proceed to step 1:
9 divided by 8 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 8 from 9 leaves us with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 8

Advancing to step 2:
If we divide 10 by 8, we get 1 and a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 8 from 10 to get 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 8

Let's proceed to step 3:
The number 8 fits into 22 2 times, leaving a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 112.0
If we take 16 away from 22, we end up with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 8

Going ahead to step 4:
8 goes into 61 7 times with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 1127.0
Subtract 56 from 61 to get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 8

Moving on to step 5:
8 goes into 53 6 times with a remainder of 5.
The next digit of our result is 6. 
Result so far: 11276.0
Subtract 48 from 53 to get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 8

Going ahead to step 6:
If we divide 55 by 8, we get 6 and a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 112766.0
If we subtract 48 from 55, we get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 8

Step 7:
If we divide 77 by 8, we get 9 and a remainder of 5.
The next digit of our result is 9. 
Result so far: 1127669.0
The remainder is 5 after subtracting 72 from 77.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 8

Let's proceed to step 8:
58 divided by 8 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 11276697.0
If we take 56 away from 58, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
The number 8 fits into 20 2 times, leaving a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 11276697.2
If we subtract 16 from 20, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
The number 8 fits into 40 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11276697.25
The remainder is 0 after subtracting 40 from 40.
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 11:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11276697.25
Subtract 0 from 0 to get 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 12:
If we divide 0 by 8, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 11276697.25
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.

The quotient of the division is 11276697.25, and the remainder is 0.0.