We're dividing 97639132 by 646 
Let's see how many times 646 fits into 97639132.

On to step 1:
646 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 646

Advancing to step 2:
646 goes into 97 0 times with a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Fetch the next digit (6) from the dividend, attach it to 97 and continue: 976 / 646

Advancing to step 3:
The number 646 fits into 976 1 times, leaving a remainder of 330.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 330 after subtracting 646 from 976.
Take the next digit (3) from the dividend and append it to 330, then repeat: 3303 / 646

Going ahead to step 4:
646 goes into 3303 5 times with a remainder of 73.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we take 3230 away from 3303, we end up with 73.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 646

Going ahead to step 5:
When dividing 739 by 646, we get 1 with a remainder of 93.
The next digit of our result is 1. 
Result so far: 151.0
If we take 646 away from 739, we end up with 93.
Include the next digit (1) from the dividend after 93, then repeat: 931 / 646

Advancing to step 6:
931 divided by 646 is 1 with a remainder of 285.
Write down 1 as next digit of the result. 
Result so far: 1511.0
Subtract 646 from 931 to get 285.
Grab the next digit (3) from the dividend, add it to 285, then carry on: 2853 / 646

Advancing to step 7:
646 can be fit into 2853 4 times, resulting in a remainder of 269.
Put 4 as the next digit of the answer. 
Result so far: 15114.0
If we take 2584 away from 2853, we end up with 269.
Bring next digit (2) of the dividend behind the 269 and repeat the process: 2692 / 646

On to step 8:
646 goes into 2692 4 times with a remainder of 108.
The next digit of our result is 4. 
Result so far: 151144.0
If we subtract 2584 from 2692, we 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.

Step 9:
When dividing 1080 by 646, we get 1 with a remainder of 434.
Use 1 as the next digit of our solution. 
Result so far: 151144.1
Subtract 646 from 1080 to get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Advancing to step 10:
646 can be fit into 4340 6 times, resulting in a remainder of 464.
Put 6 as the next digit of the answer. 
Result so far: 151144.16
If we take 3876 away from 4340, we end up with 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 11:
If we divide 4640 by 646, we get 7 and a remainder of 118.
The next digit of our result is 7. 
Result so far: 151144.167
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.

Moving on to step 12:
The number 646 fits into 1180 1 times, leaving a remainder of 534.
Record the quotient 1 as the next digit in the result. 
Result so far: 151144.1671
If we subtract 646 from 1180, we get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Going ahead to step 13:
The number 646 fits into 5340 8 times, leaving a remainder of 172.
Put 8 as the next digit of the answer. 
Result so far: 151144.16718
The remainder is 172 after subtracting 5168 from 5340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 14:
If we divide 1720 by 646, we get 2 and a remainder of 428.
Put 2 as the next digit of the answer. 
Result so far: 151144.167182
The remainder is 428 after subtracting 1292 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 15:
If we divide 4280 by 646, we get 6 and a remainder of 404.
Put 6 as the next digit of the answer. 
Result so far: 151144.1671826
Deduct 3876 from 4280 and we're left with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Moving on to step 16:
646 can be fit into 4040 6 times, resulting in a remainder of 164.
The number 6 becomes the next digit in our result. 
Result so far: 151144.16718266
Deduct 3876 from 4040 and we're left with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Our division results in 151144.16718266 with a remaining 1.64e-07.