50525680 ÷ 646 
We want to figure out the number of times 50525680 can be divided by 646.

Moving on to step 1:
The number 646 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 646

Moving on to step 2:
646 can be fit into 50 0 times, resulting in a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Bring next digit (5) of the dividend behind the 50 and repeat the process: 505 / 646

Going ahead to step 3:
646 can be fit into 505 0 times, resulting in a remainder of 505.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 505 after subtracting 0 from 505.
Take the next digit (2) from the dividend and append it to 505, then repeat: 5052 / 646

Advancing to step 4:
If we divide 5052 by 646, we get 7 and a remainder of 530.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 530 after subtracting 4522 from 5052.
Append the next digit (5) from the dividend to 530 and continue with: 5305 / 646

Going ahead to step 5:
646 can be fit into 5305 8 times, resulting in a remainder of 137.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 5168 from 5305 leaves us with 137.
Bring next digit (6) of the dividend behind the 137 and repeat the process: 1376 / 646

Going ahead to step 6:
When dividing 1376 by 646, we get 2 with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 782.0
If we take 1292 away from 1376, we end up with 84.
Grab the next digit (8) from the dividend, add it to 84, then carry on: 848 / 646

Step 7:
The number 646 fits into 848 1 times, leaving a remainder of 202.
Use 1 as the next digit of our solution. 
Result so far: 7821.0
Subtracting 646 from 848 leaves us with 202.
Grab the next digit (0) from the dividend, add it to 202, then carry on: 2020 / 646

Advancing to step 8:
646 goes into 2020 3 times with a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 78213.0
Subtract 1938 from 2020 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 9:
If we divide 820 by 646, we get 1 and a remainder of 174.
The number 1 becomes the next digit in our result. 
Result so far: 78213.1
If we subtract 646 from 820, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Going ahead to step 10:
If we divide 1740 by 646, we get 2 and a remainder of 448.
Record the quotient 2 as the next digit in the result. 
Result so far: 78213.12
Subtracting 1292 from 1740 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Let's proceed to step 11:
646 goes into 4480 6 times with a remainder of 604.
The number 6 becomes the next digit in our result. 
Result so far: 78213.126
The remainder is 604 after subtracting 3876 from 4480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Going ahead to step 12:
The number 646 fits into 6040 9 times, leaving a remainder of 226.
The next digit of our result is 9. 
Result so far: 78213.1269
If we take 5814 away from 6040, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 13:
If we divide 2260 by 646, we get 3 and a remainder of 322.
The next digit of our result is 3. 
Result so far: 78213.12693
If we take 1938 away from 2260, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 14:
646 goes into 3220 4 times with a remainder of 636.
Write down 4 as next digit of the result. 
Result so far: 78213.126934
Subtract 2584 from 3220 to get 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Moving on to step 15:
646 goes into 6360 9 times with a remainder of 546.
Record the quotient 9 as the next digit in the result. 
Result so far: 78213.1269349
If we subtract 5814 from 6360, we get 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Moving on to step 16:
If we divide 5460 by 646, we get 8 and a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 78213.12693498
If we subtract 5168 from 5460, we get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

The final outcome is 78213.12693498, with a leftover of 2.92e-07.