Let's divide 661894 by 39
We're looking to find how many times 39 goes into 661894.

Advancing to step 1:
The number 39 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 (6) from the dividend to 6 and continue with: 66 / 39

On to step 2:
66 divided by 39 is 1 with a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 27 after subtracting 39 from 66.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 39

Moving on to step 3:
The number 39 fits into 271 6 times, leaving a remainder of 37.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 234 from 271, we get 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 39

Moving on to step 4:
378 divided by 39 is 9 with a remainder of 27.
Write down 9 as next digit of the result. 
Result so far: 169.0
Deduct 351 from 378 and we're left with 27.
Grab the next digit (9) from the dividend, add it to 27, then carry on: 279 / 39

Going ahead to step 5:
The number 39 fits into 279 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 1697.0
If we subtract 273 from 279, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 39

Moving on to step 6:
The number 39 fits into 64 1 times, leaving a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 16971.0
The remainder is 25 after subtracting 39 from 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
39 can be fit into 250 6 times, resulting in a remainder of 16.
The next digit of our result is 6. 
Result so far: 16971.6
The remainder is 16 after subtracting 234 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
When dividing 160 by 39, we get 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 16971.64
If we subtract 156 from 160, we 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.

Step 9:
The number 39 fits into 40 1 times, leaving a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 16971.641
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 10:
39 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 16971.641
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
39 goes into 100 2 times with a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 16971.64102
Deduct 78 from 100 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 12:
39 goes into 220 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 16971.641025
If we subtract 195 from 220, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
250 divided by 39 is 6 with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 16971.6410256
Deduct 234 from 250 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
If we divide 160 by 39, we get 4 and a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 16971.64102564
If we subtract 156 from 160, we 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.

After the division, we end up with 16971.64102564 and a remainder of 4e-09.