We divide 66931 by 39
We want to divide 66931 by 39.

On to step 1:
39 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 39

Let's proceed to step 2:
The number 39 fits into 66 1 times, leaving a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 39 from 66 and we're left with 27.
Grab the next digit (9) from the dividend, add it to 27, then carry on: 279 / 39

Advancing to step 3:
If we divide 279 by 39, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 17.0
If we subtract 273 from 279, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 39

Let's proceed to step 4:
When dividing 63 by 39, we get 1 with a remainder of 24.
The next digit of our result is 1. 
Result so far: 171.0
Subtract 39 from 63 to get 24.
Include the next digit (1) from the dividend after 24, then repeat: 241 / 39

Step 5:
When dividing 241 by 39, we get 6 with a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 1716.0
Subtracting 234 from 241 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 6:
39 goes into 70 1 times with a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 1716.1
If we take 39 away from 70, 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.

On to step 7:
39 goes into 310 7 times with a remainder of 37.
The next digit of our result is 7. 
Result so far: 1716.17
If we take 273 away from 310, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 8:
39 can be fit into 370 9 times, resulting in a remainder of 19.
The next digit of our result is 9. 
Result so far: 1716.179
The remainder is 19 after subtracting 351 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
The number 39 fits into 190 4 times, leaving a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 1716.1794
If we take 156 away from 190, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
When dividing 340 by 39, we get 8 with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 1716.17948
Subtracting 312 from 340 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
39 goes into 280 7 times with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 1716.179487
Deduct 273 from 280 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 12:
39 can be fit into 70 1 times, resulting in a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 1716.1794871
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 13:
39 can be fit into 310 7 times, resulting in a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 1716.17948717
The remainder is 37 after subtracting 273 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

In conclusion, the division gives 1716.17948717 with a balance of 3.7e-08.