64180602 ÷ 647 
We want to figure out the number of times 64180602 can be divided by 647.

Step 1:
The number 647 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 647

On to step 2:
If we divide 64 by 647, we get 0 and a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Fetch the next digit (1) from the dividend, attach it to 64 and continue: 641 / 647

On to step 3:
When dividing 641 by 647, we get 0 with a remainder of 641.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 641 and we're left with 641.
Fetch the next digit (8) from the dividend, attach it to 641 and continue: 6418 / 647

Step 4:
647 can be fit into 6418 9 times, resulting in a remainder of 595.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 5823 away from 6418, we end up with 595.
Bring next digit (0) of the dividend behind the 595 and repeat the process: 5950 / 647

On to step 5:
647 goes into 5950 9 times with a remainder of 127.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtracting 5823 from 5950 leaves us with 127.
Fetch the next digit (6) from the dividend, attach it to 127 and continue: 1276 / 647

Step 6:
647 can be fit into 1276 1 times, resulting in a remainder of 629.
Record the quotient 1 as the next digit in the result. 
Result so far: 991.0
Subtracting 647 from 1276 leaves us with 629.
Grab the next digit (0) from the dividend, add it to 629, then carry on: 6290 / 647

On to step 7:
When dividing 6290 by 647, we get 9 with a remainder of 467.
The number 9 becomes the next digit in our result. 
Result so far: 9919.0
Subtracting 5823 from 6290 leaves us with 467.
Grab the next digit (2) from the dividend, add it to 467, then carry on: 4672 / 647

Going ahead to step 8:
647 goes into 4672 7 times with a remainder of 143.
Write down 7 as next digit of the result. 
Result so far: 99197.0
Subtracting 4529 from 4672 leaves us with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Advancing to step 9:
647 can be fit into 1430 2 times, resulting in a remainder of 136.
The next digit of our result is 2. 
Result so far: 99197.2
Deduct 1294 from 1430 and we're left with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 10:
When dividing 1360 by 647, we get 2 with a remainder of 66.
Record the quotient 2 as the next digit in the result. 
Result so far: 99197.22
Subtracting 1294 from 1360 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final result is 99197.22 with a remainder of 0.066.