We divide 39458643 by 434
We want to figure out the number of times 39458643 can be divided by 434.

Going ahead to step 1:
The number 434 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 434

Advancing to step 2:
The number 434 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Include the next digit (4) from the dividend after 39, then repeat: 394 / 434

Step 3:
434 goes into 394 0 times with a remainder of 394.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 394, we end up with 394.
Append the next digit (5) from the dividend to 394 and continue with: 3945 / 434

Let's proceed to step 4:
3945 divided by 434 is 9 with a remainder of 39.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 3906 from 3945 to get 39.
Grab the next digit (8) from the dividend, add it to 39, then carry on: 398 / 434

On to step 5:
398 divided by 434 is 0 with a remainder of 398.
Write down 0 as next digit of the result. 
Result so far: 90.0
Subtracting 0 from 398 leaves us with 398.
Fetch the next digit (6) from the dividend, attach it to 398 and continue: 3986 / 434

On to step 6:
434 can be fit into 3986 9 times, resulting in a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 909.0
Subtracting 3906 from 3986 leaves us with 80.
Include the next digit (4) from the dividend after 80, then repeat: 804 / 434

Moving on to step 7:
If we divide 804 by 434, we get 1 and a remainder of 370.
The next digit of our result is 1. 
Result so far: 9091.0
If we subtract 434 from 804, we get 370.
Fetch the next digit (3) from the dividend, attach it to 370 and continue: 3703 / 434

Let's proceed to step 8:
When dividing 3703 by 434, we get 8 with a remainder of 231.
The next digit of our result is 8. 
Result so far: 90918.0
The remainder is 231 after subtracting 3472 from 3703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Going ahead to step 9:
434 goes into 2310 5 times with a remainder of 140.
The number 5 becomes the next digit in our result. 
Result so far: 90918.5
Subtract 2170 from 2310 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 10:
The number 434 fits into 1400 3 times, leaving a remainder of 98.
Write down 3 as next digit of the result. 
Result so far: 90918.53
Subtract 1302 from 1400 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 11:
The number 434 fits into 980 2 times, leaving a remainder of 112.
The next digit of our result is 2. 
Result so far: 90918.532
The remainder is 112 after subtracting 868 from 980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 12:
If we divide 1120 by 434, we get 2 and a remainder of 252.
Use 2 as the next digit of our solution. 
Result so far: 90918.5322
Subtract 868 from 1120 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

The final result is 90918.5322 with a remainder of 0.00252.