87321791 divided by 978 
We want to divide 87321791 by 978.

Going ahead to step 1:
8 divided by 978 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 978

Step 2:
87 divided by 978 is 0 with a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Append the next digit (3) from the dividend to 87 and continue with: 873 / 978

Advancing to step 3:
873 divided by 978 is 0 with a remainder of 873.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 873 to get 873.
Fetch the next digit (2) from the dividend, attach it to 873 and continue: 8732 / 978

Let's proceed to step 4:
978 can be fit into 8732 8 times, resulting in a remainder of 908.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 7824 from 8732 to get 908.
Include the next digit (1) from the dividend after 908, then repeat: 9081 / 978

On to step 5:
978 can be fit into 9081 9 times, resulting in a remainder of 279.
Use 9 as the next digit of our solution. 
Result so far: 89.0
If we take 8802 away from 9081, we end up with 279.
Append the next digit (7) from the dividend to 279 and continue with: 2797 / 978

Going ahead to step 6:
If we divide 2797 by 978, we get 2 and a remainder of 841.
The next digit of our result is 2. 
Result so far: 892.0
If we take 1956 away from 2797, we end up with 841.
Take the next digit (9) from the dividend and append it to 841, then repeat: 8419 / 978

Step 7:
8419 divided by 978 is 8 with a remainder of 595.
The number 8 becomes the next digit in our result. 
Result so far: 8928.0
Subtracting 7824 from 8419 leaves us with 595.
Include the next digit (1) from the dividend after 595, then repeat: 5951 / 978

On to step 8:
The number 978 fits into 5951 6 times, leaving a remainder of 83.
The number 6 becomes the next digit in our result. 
Result so far: 89286.0
Deduct 5868 from 5951 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 9:
The number 978 fits into 830 0 times, leaving a remainder of 830.
Write down 0 as next digit of the result. 
Result so far: 89286.0
If we subtract 0 from 830, we get 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Moving on to step 10:
If we divide 8300 by 978, we get 8 and a remainder of 476.
Write down 8 as next digit of the result. 
Result so far: 89286.08
If we subtract 7824 from 8300, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Moving on to step 11:
978 goes into 4760 4 times with a remainder of 848.
Put 4 as the next digit of the answer. 
Result so far: 89286.084
If we take 3912 away from 4760, we end up with 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

Going ahead to step 12:
8480 divided by 978 is 8 with a remainder of 656.
The number 8 becomes the next digit in our result. 
Result so far: 89286.0848
If we take 7824 away from 8480, we end up with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Let's proceed to step 13:
978 can be fit into 6560 6 times, resulting in a remainder of 692.
Put 6 as the next digit of the answer. 
Result so far: 89286.08486
Subtracting 5868 from 6560 leaves us with 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

Moving on to step 14:
6920 divided by 978 is 7 with a remainder of 74.
The number 7 becomes the next digit in our result. 
Result so far: 89286.084867
The remainder is 74 after subtracting 6846 from 6920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 15:
740 divided by 978 is 0 with a remainder of 740.
The number 0 becomes the next digit in our result. 
Result so far: 89286.084867
Deduct 0 from 740 and we're left with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Going ahead to step 16:
978 goes into 7400 7 times with a remainder of 554.
Record the quotient 7 as the next digit in the result. 
Result so far: 89286.08486707
Subtract 6846 from 7400 to get 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

The final outcome is 89286.08486707, with a leftover of 5.54e-07.