We divide 16420 by 39
Our goal is to divide 16420 by 39.

Going ahead to step 1:
When dividing 1 by 39, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 39

Advancing to step 2:
If we divide 16 by 39, we get 0 and a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Fetch the next digit (4) from the dividend, attach it to 16 and continue: 164 / 39

On to step 3:
The number 39 fits into 164 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 156 from 164, we get 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 39

On to step 4:
The number 39 fits into 82 2 times, leaving a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
The remainder is 4 after subtracting 78 from 82.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 39

Moving on to step 5:
If we divide 40 by 39, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 421.0
Subtracting 39 from 40 leaves us 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 6:
The number 39 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 421.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
The number 39 fits into 100 2 times, leaving a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 421.02
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
If we divide 220 by 39, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 421.025
If we take 195 away from 220, we end up with 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 9:
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: 421.0256
If we subtract 234 from 250, we get 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 10:
The number 39 fits into 160 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 421.02564
Subtract 156 from 160 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.

On to step 11:
40 divided by 39 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 421.025641
Subtracting 39 from 40 leaves us 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.

Going ahead to step 12:
10 divided by 39 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 421.025641
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.

Step 13:
100 divided by 39 is 2 with a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 421.02564102
If we take 78 away from 100, we end up 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.

The quotient of the division is 421.02564102, and the remainder is 2.2e-08.