Let's divide 64315346 by 391
We want to divide 64315346 by 391.

Going ahead to step 1:
The number 391 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 391

Going ahead to step 2:
When dividing 64 by 391, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 391

Advancing to step 3:
The number 391 fits into 643 1 times, leaving a remainder of 252.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 391 from 643, we get 252.
Include the next digit (1) from the dividend after 252, then repeat: 2521 / 391

Going ahead to step 4:
When dividing 2521 by 391, we get 6 with a remainder of 175.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Subtract 2346 from 2521 to get 175.
Grab the next digit (5) from the dividend, add it to 175, then carry on: 1755 / 391

Advancing to step 5:
391 goes into 1755 4 times with a remainder of 191.
Write down 4 as next digit of the result. 
Result so far: 164.0
The remainder is 191 after subtracting 1564 from 1755.
Take the next digit (3) from the dividend and append it to 191, then repeat: 1913 / 391

Let's proceed to step 6:
391 goes into 1913 4 times with a remainder of 349.
The number 4 becomes the next digit in our result. 
Result so far: 1644.0
Deduct 1564 from 1913 and we're left with 349.
Bring next digit (4) of the dividend behind the 349 and repeat the process: 3494 / 391

Advancing to step 7:
If we divide 3494 by 391, we get 8 and a remainder of 366.
Use 8 as the next digit of our solution. 
Result so far: 16448.0
If we subtract 3128 from 3494, we get 366.
Fetch the next digit (6) from the dividend, attach it to 366 and continue: 3666 / 391

Going ahead to step 8:
If we divide 3666 by 391, we get 9 and a remainder of 147.
Use 9 as the next digit of our solution. 
Result so far: 164489.0
If we subtract 3519 from 3666, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 9:
391 goes into 1470 3 times with a remainder of 297.
Record the quotient 3 as the next digit in the result. 
Result so far: 164489.3
Subtracting 1173 from 1470 leaves us with 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Moving on to step 10:
391 can be fit into 2970 7 times, resulting in a remainder of 233.
The number 7 becomes the next digit in our result. 
Result so far: 164489.37
Deduct 2737 from 2970 and we're left with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Advancing to step 11:
391 can be fit into 2330 5 times, resulting in a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 164489.375
If we take 1955 away from 2330, we end up with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Let's proceed to step 12:
The number 391 fits into 3750 9 times, leaving a remainder of 231.
Record the quotient 9 as the next digit in the result. 
Result so far: 164489.3759
Deduct 3519 from 3750 and we're left with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Step 13:
If we divide 2310 by 391, we get 5 and a remainder of 355.
The number 5 becomes the next digit in our result. 
Result so far: 164489.37595
Subtracting 1955 from 2310 leaves us with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

On to step 14:
The number 391 fits into 3550 9 times, leaving a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 164489.375959
If we take 3519 away from 3550, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 15:
When dividing 310 by 391, we get 0 with a remainder of 310.
Use 0 as the next digit of our solution. 
Result so far: 164489.375959
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Step 16:
391 can be fit into 3100 7 times, resulting in a remainder of 363.
Write down 7 as next digit of the result. 
Result so far: 164489.37595907
Subtract 2737 from 3100 to get 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

The final result is 164489.37595907 with a remainder of 3.63e-07.