87991522 ÷ 310 
We want to figure out the number of times 87991522 can be divided by 310.

Let's proceed to step 1:
When dividing 8 by 310, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 310

Step 2:
When dividing 87 by 310, we get 0 with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Fetch the next digit (9) from the dividend, attach it to 87 and continue: 879 / 310

Going ahead to step 3:
310 goes into 879 2 times with a remainder of 259.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 620 from 879 to get 259.
Fetch the next digit (9) from the dividend, attach it to 259 and continue: 2599 / 310

Advancing to step 4:
The number 310 fits into 2599 8 times, leaving a remainder of 119.
The next digit of our result is 8. 
Result so far: 28.0
The remainder is 119 after subtracting 2480 from 2599.
Bring next digit (1) of the dividend behind the 119 and repeat the process: 1191 / 310

Moving on to step 5:
1191 divided by 310 is 3 with a remainder of 261.
Record the quotient 3 as the next digit in the result. 
Result so far: 283.0
If we take 930 away from 1191, we end up with 261.
Include the next digit (5) from the dividend after 261, then repeat: 2615 / 310

Step 6:
310 goes into 2615 8 times with a remainder of 135.
Write down 8 as next digit of the result. 
Result so far: 2838.0
If we take 2480 away from 2615, we end up with 135.
Fetch the next digit (2) from the dividend, attach it to 135 and continue: 1352 / 310

On to step 7:
If we divide 1352 by 310, we get 4 and a remainder of 112.
Record the quotient 4 as the next digit in the result. 
Result so far: 28384.0
If we take 1240 away from 1352, we end up with 112.
Take the next digit (2) from the dividend and append it to 112, then repeat: 1122 / 310

Moving on to step 8:
1122 divided by 310 is 3 with a remainder of 192.
The number 3 becomes the next digit in our result. 
Result so far: 283843.0
The remainder is 192 after subtracting 930 from 1122.
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 9:
If we divide 1920 by 310, we get 6 and a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 283843.6
Deduct 1860 from 1920 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
310 goes into 600 1 times with a remainder of 290.
Put 1 as the next digit of the answer. 
Result so far: 283843.61
Subtracting 310 from 600 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Going ahead to step 11:
The number 310 fits into 2900 9 times, leaving a remainder of 110.
Use 9 as the next digit of our solution. 
Result so far: 283843.619
Subtract 2790 from 2900 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 12:
310 goes into 1100 3 times with a remainder of 170.
Record the quotient 3 as the next digit in the result. 
Result so far: 283843.6193
If we subtract 930 from 1100, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 13:
If we divide 1700 by 310, we get 5 and a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 283843.61935
Subtract 1550 from 1700 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 14:
1500 divided by 310 is 4 with a remainder of 260.
The next digit of our result is 4. 
Result so far: 283843.619354
If we subtract 1240 from 1500, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 15:
310 can be fit into 2600 8 times, resulting in a remainder of 120.
Use 8 as the next digit of our solution. 
Result so far: 283843.6193548
The remainder is 120 after subtracting 2480 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 16:
If we divide 1200 by 310, we get 3 and a remainder of 270.
Write down 3 as next digit of the result. 
Result so far: 283843.61935483
Subtracting 930 from 1200 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

In conclusion, the division gives 283843.61935483 with a balance of 2.7e-07.