87117102 ÷ 304 
We're looking to find how many times 304 goes into 87117102.

On to step 1:
When dividing 8 by 304, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 304

On to step 2:
The number 304 fits into 87 0 times, leaving a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Grab the next digit (1) from the dividend, add it to 87, then carry on: 871 / 304

Moving on to step 3:
871 divided by 304 is 2 with a remainder of 263.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 608 from 871 and we're left with 263.
Grab the next digit (1) from the dividend, add it to 263, then carry on: 2631 / 304

Step 4:
304 can be fit into 2631 8 times, resulting in a remainder of 199.
Write down 8 as next digit of the result. 
Result so far: 28.0
The remainder is 199 after subtracting 2432 from 2631.
Fetch the next digit (7) from the dividend, attach it to 199 and continue: 1997 / 304

Advancing to step 5:
The number 304 fits into 1997 6 times, leaving a remainder of 173.
Write down 6 as next digit of the result. 
Result so far: 286.0
Deduct 1824 from 1997 and we're left with 173.
Append the next digit (1) from the dividend to 173 and continue with: 1731 / 304

Let's proceed to step 6:
1731 divided by 304 is 5 with a remainder of 211.
Record the quotient 5 as the next digit in the result. 
Result so far: 2865.0
Deduct 1520 from 1731 and we're left with 211.
Take the next digit (0) from the dividend and append it to 211, then repeat: 2110 / 304

Step 7:
304 goes into 2110 6 times with a remainder of 286.
Put 6 as the next digit of the answer. 
Result so far: 28656.0
Subtract 1824 from 2110 to get 286.
Append the next digit (2) from the dividend to 286 and continue with: 2862 / 304

Step 8:
The number 304 fits into 2862 9 times, leaving a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 286569.0
Subtract 2736 from 2862 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 9:
If we divide 1260 by 304, we get 4 and a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 286569.4
The remainder is 44 after subtracting 1216 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 10:
304 goes into 440 1 times with a remainder of 136.
Write down 1 as next digit of the result. 
Result so far: 286569.41
If we take 304 away from 440, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 11:
The number 304 fits into 1360 4 times, leaving a remainder of 144.
Record the quotient 4 as the next digit in the result. 
Result so far: 286569.414
The remainder is 144 after subtracting 1216 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 12:
304 can be fit into 1440 4 times, resulting in a remainder of 224.
Use 4 as the next digit of our solution. 
Result so far: 286569.4144
Subtract 1216 from 1440 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Our division results in 286569.4144 with a remaining 0.00224.