We're dividing 53416313 by 646 
We're looking to find how many times 646 goes into 53416313.

Going ahead to step 1:
If we divide 5 by 646, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 646

Let's proceed to step 2:
When dividing 53 by 646, we get 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Append the next digit (4) from the dividend to 53 and continue with: 534 / 646

Advancing to step 3:
The number 646 fits into 534 0 times, leaving a remainder of 534.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 534 leaves us with 534.
Take the next digit (1) from the dividend and append it to 534, then repeat: 5341 / 646

Step 4:
If we divide 5341 by 646, we get 8 and a remainder of 173.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 5168 from 5341, we get 173.
Include the next digit (6) from the dividend after 173, then repeat: 1736 / 646

On to step 5:
When dividing 1736 by 646, we get 2 with a remainder of 444.
Put 2 as the next digit of the answer. 
Result so far: 82.0
Subtract 1292 from 1736 to get 444.
Include the next digit (3) from the dividend after 444, then repeat: 4443 / 646

Step 6:
4443 divided by 646 is 6 with a remainder of 567.
Record the quotient 6 as the next digit in the result. 
Result so far: 826.0
Subtract 3876 from 4443 to get 567.
Fetch the next digit (1) from the dividend, attach it to 567 and continue: 5671 / 646

Step 7:
The number 646 fits into 5671 8 times, leaving a remainder of 503.
Record the quotient 8 as the next digit in the result. 
Result so far: 8268.0
Subtract 5168 from 5671 to get 503.
Grab the next digit (3) from the dividend, add it to 503, then carry on: 5033 / 646

Let's proceed to step 8:
If we divide 5033 by 646, we get 7 and a remainder of 511.
The number 7 becomes the next digit in our result. 
Result so far: 82687.0
Subtract 4522 from 5033 to get 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Moving on to step 9:
The number 646 fits into 5110 7 times, leaving a remainder of 588.
Record the quotient 7 as the next digit in the result. 
Result so far: 82687.7
If we take 4522 away from 5110, we end up with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Going ahead to step 10:
If we divide 5880 by 646, we get 9 and a remainder of 66.
The next digit of our result is 9. 
Result so far: 82687.79
Deduct 5814 from 5880 and we're left 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.

Step 11:
660 divided by 646 is 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 82687.791
If we subtract 646 from 660, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 12:
The number 646 fits into 140 0 times, leaving a remainder of 140.
Put 0 as the next digit of the answer. 
Result so far: 82687.791
If we subtract 0 from 140, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 13:
If we divide 1400 by 646, we get 2 and a remainder of 108.
Write down 2 as next digit of the result. 
Result so far: 82687.79102
Subtract 1292 from 1400 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 14:
When dividing 1080 by 646, we get 1 with a remainder of 434.
Write down 1 as next digit of the result. 
Result so far: 82687.791021
Deduct 646 from 1080 and we're left with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Going ahead to step 15:
646 goes into 4340 6 times with a remainder of 464.
The number 6 becomes the next digit in our result. 
Result so far: 82687.7910216
Subtract 3876 from 4340 to get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

On to step 16:
646 can be fit into 4640 7 times, resulting in a remainder of 118.
The number 7 becomes the next digit in our result. 
Result so far: 82687.79102167
Subtract 4522 from 4640 to get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Our division results in 82687.79102167 with a remaining 1.18e-07.