87378817 ÷ 285 
We want to figure out the number of times 87378817 can be divided by 285.

Advancing to step 1:
285 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 285

Going ahead to step 2:
285 goes into 87 0 times with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Take the next digit (3) from the dividend and append it to 87, then repeat: 873 / 285

Let's proceed to step 3:
If we divide 873 by 285, we get 3 and a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 855 away from 873, we end up with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 285

Moving on to step 4:
187 divided by 285 is 0 with a remainder of 187.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we subtract 0 from 187, we get 187.
Fetch the next digit (8) from the dividend, attach it to 187 and continue: 1878 / 285

Step 5:
If we divide 1878 by 285, we get 6 and a remainder of 168.
The number 6 becomes the next digit in our result. 
Result so far: 306.0
If we subtract 1710 from 1878, we get 168.
Include the next digit (8) from the dividend after 168, then repeat: 1688 / 285

On to step 6:
1688 divided by 285 is 5 with a remainder of 263.
The number 5 becomes the next digit in our result. 
Result so far: 3065.0
The remainder is 263 after subtracting 1425 from 1688.
Grab the next digit (1) from the dividend, add it to 263, then carry on: 2631 / 285

Going ahead to step 7:
285 can be fit into 2631 9 times, resulting in a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 30659.0
Subtract 2565 from 2631 to get 66.
Include the next digit (7) from the dividend after 66, then repeat: 667 / 285

Step 8:
285 can be fit into 667 2 times, resulting in a remainder of 97.
Put 2 as the next digit of the answer. 
Result so far: 306592.0
Subtracting 570 from 667 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 9:
970 divided by 285 is 3 with a remainder of 115.
Write down 3 as next digit of the result. 
Result so far: 306592.3
Subtract 855 from 970 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 10:
285 can be fit into 1150 4 times, resulting in a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 306592.34
Subtract 1140 from 1150 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
100 divided by 285 is 0 with a remainder of 100.
The next digit of our result is 0. 
Result so far: 306592.34
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
The number 285 fits into 1000 3 times, leaving a remainder of 145.
The next digit of our result is 3. 
Result so far: 306592.3403
Subtract 855 from 1000 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 13:
285 goes into 1450 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 306592.34035
If we subtract 1425 from 1450, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 14:
The number 285 fits into 250 0 times, leaving a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 306592.34035
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 15:
2500 divided by 285 is 8 with a remainder of 220.
Record the quotient 8 as the next digit in the result. 
Result so far: 306592.3403508
Deduct 2280 from 2500 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 16:
The number 285 fits into 2200 7 times, leaving a remainder of 205.
The number 7 becomes the next digit in our result. 
Result so far: 306592.34035087
Subtracting 1995 from 2200 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

In conclusion, the division gives 306592.34035087 with a balance of 2.05e-07.