We divide 64862447 by 646
We want to figure out the number of times 64862447 can be divided by 646.

On to step 1:
If we divide 6 by 646, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 646

Moving on to step 2:
64 divided by 646 is 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (8) from the dividend to 64 and continue with: 648 / 646

Going ahead to step 3:
648 divided by 646 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 646 from 648 to get 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 646

Step 4:
When dividing 26 by 646, we get 0 with a remainder of 26.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 26, we end up with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 646

On to step 5:
If we divide 262 by 646, we get 0 and a remainder of 262.
Write down 0 as next digit of the result. 
Result so far: 100.0
Deduct 0 from 262 and we're left with 262.
Append the next digit (4) from the dividend to 262 and continue with: 2624 / 646

Step 6:
646 can be fit into 2624 4 times, resulting in a remainder of 40.
The next digit of our result is 4. 
Result so far: 1004.0
If we take 2584 away from 2624, we end up with 40.
Append the next digit (4) from the dividend to 40 and continue with: 404 / 646

Going ahead to step 7:
646 goes into 404 0 times with a remainder of 404.
Use 0 as the next digit of our solution. 
Result so far: 10040.0
If we subtract 0 from 404, we get 404.
Bring next digit (7) of the dividend behind the 404 and repeat the process: 4047 / 646

Going ahead to step 8:
The number 646 fits into 4047 6 times, leaving a remainder of 171.
Put 6 as the next digit of the answer. 
Result so far: 100406.0
Subtract 3876 from 4047 to get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Moving on to step 9:
646 can be fit into 1710 2 times, resulting in a remainder of 418.
Record the quotient 2 as the next digit in the result. 
Result so far: 100406.2
If we subtract 1292 from 1710, we get 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 10:
4180 divided by 646 is 6 with a remainder of 304.
The next digit of our result is 6. 
Result so far: 100406.26
The remainder is 304 after subtracting 3876 from 4180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 11:
If we divide 3040 by 646, we get 4 and a remainder of 456.
Use 4 as the next digit of our solution. 
Result so far: 100406.264
Subtract 2584 from 3040 to get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

On to step 12:
646 can be fit into 4560 7 times, resulting in a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 100406.2647
The remainder is 38 after subtracting 4522 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 13:
380 divided by 646 is 0 with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 100406.2647
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 14:
646 can be fit into 3800 5 times, resulting in a remainder of 570.
The next digit of our result is 5. 
Result so far: 100406.264705
Deduct 3230 from 3800 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 15:
The number 646 fits into 5700 8 times, leaving a remainder of 532.
Put 8 as the next digit of the answer. 
Result so far: 100406.2647058
Subtracting 5168 from 5700 leaves us with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 16:
The number 646 fits into 5320 8 times, leaving a remainder of 152.
The number 8 becomes the next digit in our result. 
Result so far: 100406.26470588
If we subtract 5168 from 5320, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

After the division, we end up with 100406.26470588 and a remainder of 1.52e-07.