We're dividing 661993 by 39 
Our goal is to divide 661993 by 39.

Moving on to step 1:
When dividing 6 by 39, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 39

Going ahead to step 2:
If we divide 66 by 39, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 27 after subtracting 39 from 66.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 39

Let's proceed to step 3:
The number 39 fits into 271 6 times, leaving a remainder of 37.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 234 from 271, we get 37.
Take the next digit (9) from the dividend and append it to 37, then repeat: 379 / 39

Going ahead to step 4:
If we divide 379 by 39, we get 9 and a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 169.0
Subtracting 351 from 379 leaves us with 28.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 39

Moving on to step 5:
39 goes into 289 7 times with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 1697.0
If we take 273 away from 289, we end up with 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 39

Step 6:
When dividing 163 by 39, we get 4 with a remainder of 7.
The next digit of our result is 4. 
Result so far: 16974.0
If we take 156 away from 163, we end up 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.

Advancing to step 7:
When dividing 70 by 39, we get 1 with a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 16974.1
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 8:
310 divided by 39 is 7 with a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 16974.17
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 9:
370 divided by 39 is 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 16974.179
Subtract 351 from 370 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 10:
The number 39 fits into 190 4 times, leaving a remainder of 34.
The next digit of our result is 4. 
Result so far: 16974.1794
Deduct 156 from 190 and we're left 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.

Advancing to step 11:
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: 16974.17948
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.

On to step 12:
If we divide 280 by 39, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 16974.179487
Subtracting 273 from 280 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.

On to step 13:
39 can be fit into 70 1 times, resulting in a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 16974.1794871
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.

Advancing to step 14:
310 divided by 39 is 7 with a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 16974.17948717
Subtracting 273 from 310 leaves us 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.

The final result is 16974.17948717 with a remainder of 3.7e-08.