89179380 ÷ 815 
We want to figure out the number of times 89179380 can be divided by 815.

Step 1:
815 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
The remainder is 8 after subtracting 0 from 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 815

Step 2:
89 divided by 815 is 0 with a remainder of 89.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 89, we get 89.
Include the next digit (1) from the dividend after 89, then repeat: 891 / 815

Step 3:
The number 815 fits into 891 1 times, leaving a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 815 from 891 and we're left with 76.
Bring next digit (7) of the dividend behind the 76 and repeat the process: 767 / 815

Advancing to step 4:
The number 815 fits into 767 0 times, leaving a remainder of 767.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 767, we end up with 767.
Append the next digit (9) from the dividend to 767 and continue with: 7679 / 815

Advancing to step 5:
7679 divided by 815 is 9 with a remainder of 344.
The next digit of our result is 9. 
Result so far: 109.0
The remainder is 344 after subtracting 7335 from 7679.
Include the next digit (3) from the dividend after 344, then repeat: 3443 / 815

On to step 6:
The number 815 fits into 3443 4 times, leaving a remainder of 183.
Record the quotient 4 as the next digit in the result. 
Result so far: 1094.0
If we subtract 3260 from 3443, we get 183.
Append the next digit (8) from the dividend to 183 and continue with: 1838 / 815

Moving on to step 7:
When dividing 1838 by 815, we get 2 with a remainder of 208.
Use 2 as the next digit of our solution. 
Result so far: 10942.0
If we subtract 1630 from 1838, we get 208.
Bring next digit (0) of the dividend behind the 208 and repeat the process: 2080 / 815

Moving on to step 8:
When dividing 2080 by 815, we get 2 with a remainder of 450.
Use 2 as the next digit of our solution. 
Result so far: 109422.0
The remainder is 450 after subtracting 1630 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 9:
4500 divided by 815 is 5 with a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 109422.5
If we take 4075 away from 4500, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 10:
If we divide 4250 by 815, we get 5 and a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 109422.55
If we subtract 4075 from 4250, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

After the division, we end up with 109422.55 and a remainder of 0.175.