420430 divided by 39 
We want to figure out the number of times 420430 can be divided by 39.

Moving on to step 1:
The number 39 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 39

On to step 2:
When dividing 42 by 39, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 39 from 42, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 39

On to step 3:
30 divided by 39 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 30, we get 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 39

Step 4:
The number 39 fits into 304 7 times, leaving a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
The remainder is 31 after subtracting 273 from 304.
Grab the next digit (3) from the dividend, add it to 31, then carry on: 313 / 39

Let's proceed to step 5:
39 can be fit into 313 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 1078.0
If we subtract 312 from 313, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 39

Step 6:
When dividing 10 by 39, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 10780.0
If we subtract 0 from 10, we get 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 7:
When dividing 100 by 39, we get 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 10780.2
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.

Let's proceed to step 8:
When dividing 220 by 39, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 10780.25
Subtracting 195 from 220 leaves us 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:
When dividing 250 by 39, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 10780.256
Subtract 234 from 250 to 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:
When dividing 160 by 39, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 10780.2564
If we take 156 away from 160, we end up with 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 11:
39 can be fit into 40 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 10780.25641
Subtract 39 from 40 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
When dividing 10 by 39, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 10780.25641
Subtract 0 from 10 to get 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:
If we divide 100 by 39, we get 2 and a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 10780.2564102
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.

Going ahead to step 14:
39 goes into 220 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 10780.25641025
Subtracting 195 from 220 leaves us 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.

In conclusion, the division gives 10780.25641025 with a balance of 2.5e-08.