We're dividing 84588636 by 978 
Let's see how many times 978 fits into 84588636.

Step 1:
978 goes into 8 0 times 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.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 978

Advancing to step 2:
If we divide 84 by 978, we get 0 and a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Append the next digit (5) from the dividend to 84 and continue with: 845 / 978

Moving on to step 3:
978 goes into 845 0 times with a remainder of 845.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 845, we get 845.
Bring next digit (8) of the dividend behind the 845 and repeat the process: 8458 / 978

Going ahead to step 4:
978 can be fit into 8458 8 times, resulting in a remainder of 634.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 634 after subtracting 7824 from 8458.
Bring next digit (8) of the dividend behind the 634 and repeat the process: 6348 / 978

On to step 5:
The number 978 fits into 6348 6 times, leaving a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 86.0
The remainder is 480 after subtracting 5868 from 6348.
Append the next digit (6) from the dividend to 480 and continue with: 4806 / 978

Step 6:
If we divide 4806 by 978, we get 4 and a remainder of 894.
Write down 4 as next digit of the result. 
Result so far: 864.0
Deduct 3912 from 4806 and we're left with 894.
Grab the next digit (3) from the dividend, add it to 894, then carry on: 8943 / 978

Advancing to step 7:
When dividing 8943 by 978, we get 9 with a remainder of 141.
Record the quotient 9 as the next digit in the result. 
Result so far: 8649.0
If we subtract 8802 from 8943, we get 141.
Fetch the next digit (6) from the dividend, attach it to 141 and continue: 1416 / 978

Moving on to step 8:
978 can be fit into 1416 1 times, resulting in a remainder of 438.
Put 1 as the next digit of the answer. 
Result so far: 86491.0
If we take 978 away from 1416, we end up with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Step 9:
4380 divided by 978 is 4 with a remainder of 468.
Record the quotient 4 as the next digit in the result. 
Result so far: 86491.4
Subtract 3912 from 4380 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

On to step 10:
When dividing 4680 by 978, we get 4 with a remainder of 768.
Put 4 as the next digit of the answer. 
Result so far: 86491.44
Subtract 3912 from 4680 to get 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

After the division, we end up with 86491.44 and a remainder of 0.768.