We're dividing 1685715 by 391 
We're looking to find how many times 391 goes into 1685715.

Step 1:
If we divide 1 by 391, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 391

Step 2:
391 goes into 16 0 times with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 391

On to step 3:
391 goes into 168 0 times with a remainder of 168.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 168 after subtracting 0 from 168.
Bring next digit (5) of the dividend behind the 168 and repeat the process: 1685 / 391

Moving on to step 4:
If we divide 1685 by 391, we get 4 and a remainder of 121.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 1564 from 1685 to get 121.
Grab the next digit (7) from the dividend, add it to 121, then carry on: 1217 / 391

Moving on to step 5:
1217 divided by 391 is 3 with a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtract 1173 from 1217 to get 44.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 391

Step 6:
391 can be fit into 441 1 times, resulting in a remainder of 50.
Write down 1 as next digit of the result. 
Result so far: 431.0
Subtracting 391 from 441 leaves us with 50.
Grab the next digit (5) from the dividend, add it to 50, then carry on: 505 / 391

Step 7:
391 can be fit into 505 1 times, resulting in a remainder of 114.
Use 1 as the next digit of our solution. 
Result so far: 4311.0
The remainder is 114 after subtracting 391 from 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Step 8:
The number 391 fits into 1140 2 times, leaving a remainder of 358.
The number 2 becomes the next digit in our result. 
Result so far: 4311.2
Deduct 782 from 1140 and we're left with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Advancing to step 9:
If we divide 3580 by 391, we get 9 and a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 4311.29
If we take 3519 away from 3580, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 10:
610 divided by 391 is 1 with a remainder of 219.
Put 1 as the next digit of the answer. 
Result so far: 4311.291
If we take 391 away from 610, we end up with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Step 11:
391 can be fit into 2190 5 times, resulting in a remainder of 235.
Use 5 as the next digit of our solution. 
Result so far: 4311.2915
Subtract 1955 from 2190 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 12:
391 can be fit into 2350 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 4311.29156
Subtract 2346 from 2350 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
391 can be fit into 40 0 times, resulting in a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 4311.29156
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
If we divide 400 by 391, we get 1 and a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 4311.2915601
The remainder is 9 after subtracting 391 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 15:
90 divided by 391 is 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 4311.2915601
If we subtract 0 from 90, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final outcome is 4311.2915601, with a leftover of 9e-08.