78649615 ÷ 87 
We want to divide 78649615 by 87.

Let's proceed to step 1:
7 divided by 87 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 87

Let's proceed to step 2:
87 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 87

Let's proceed to step 3:
87 goes into 786 9 times with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 783 from 786 and we're left with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 87

Moving on to step 4:
When dividing 34 by 87, we get 0 with a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
If we take 0 away from 34, we end up with 34.
Include the next digit (9) from the dividend after 34, then repeat: 349 / 87

Going ahead to step 5:
87 can be fit into 349 4 times, resulting in a remainder of 1.
The next digit of our result is 4. 
Result so far: 904.0
If we take 348 away from 349, we end up with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 87

Step 6:
87 can be fit into 16 0 times, resulting in a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 9040.0
Deduct 0 from 16 and we're left with 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 87

On to step 7:
When dividing 161 by 87, we get 1 with a remainder of 74.
Write down 1 as next digit of the result. 
Result so far: 90401.0
Subtract 87 from 161 to get 74.
Append the next digit (5) from the dividend to 74 and continue with: 745 / 87

Going ahead to step 8:
87 goes into 745 8 times with a remainder of 49.
Put 8 as the next digit of the answer. 
Result so far: 904018.0
Deduct 696 from 745 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 9:
87 can be fit into 490 5 times, resulting in a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 904018.5
Deduct 435 from 490 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 10:
550 divided by 87 is 6 with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 904018.56
Subtract 522 from 550 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
280 divided by 87 is 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 904018.563
Deduct 261 from 280 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 12:
87 goes into 190 2 times with a remainder of 16.
The next digit of our result is 2. 
Result so far: 904018.5632
If we take 174 away from 190, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
87 can be fit into 160 1 times, resulting in a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 904018.56321
If we subtract 87 from 160, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 14:
When dividing 730 by 87, we get 8 with a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 904018.563218
The remainder is 34 after subtracting 696 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 15:
87 goes into 340 3 times with a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 904018.5632183
Deduct 261 from 340 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 16:
When dividing 790 by 87, we get 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 904018.56321839
Subtract 783 from 790 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 904018.56321839, with a leftover of 7e-09.