647980 ÷ 86 
We want to figure out the number of times 647980 can be divided by 86.

On to step 1:
86 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 86

Step 2:
When dividing 64 by 86, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (7) from the dividend to 64 and continue with: 647 / 86

Moving on to step 3:
86 goes into 647 7 times with a remainder of 45.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 45 after subtracting 602 from 647.
Fetch the next digit (9) from the dividend, attach it to 45 and continue: 459 / 86

Going ahead to step 4:
The number 86 fits into 459 5 times, leaving a remainder of 29.
Use 5 as the next digit of our solution. 
Result so far: 75.0
Subtracting 430 from 459 leaves us with 29.
Include the next digit (8) from the dividend after 29, then repeat: 298 / 86

On to step 5:
86 can be fit into 298 3 times, resulting in a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 753.0
The remainder is 40 after subtracting 258 from 298.
Include the next digit (0) from the dividend after 40, then repeat: 400 / 86

Let's proceed to step 6:
400 divided by 86 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 7534.0
If we take 344 away from 400, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 7:
86 can be fit into 560 6 times, resulting in a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 7534.6
The remainder is 44 after subtracting 516 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 8:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 7534.65
Subtracting 430 from 440 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
100 divided by 86 is 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 7534.651
The remainder is 14 after subtracting 86 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 10:
86 can be fit into 140 1 times, resulting in a remainder of 54.
The next digit of our result is 1. 
Result so far: 7534.6511
The remainder is 54 after subtracting 86 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The quotient of the division is 7534.6511, and the remainder is 0.00054.