We look at the division of 42390905 by 589 
We're looking to find how many times 589 goes into 42390905.

Let's proceed to step 1:
If we divide 4 by 589, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 589

Moving on to step 2:
When dividing 42 by 589, we get 0 with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Append the next digit (3) from the dividend to 42 and continue with: 423 / 589

Let's proceed to step 3:
The number 589 fits into 423 0 times, leaving a remainder of 423.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 423, we get 423.
Bring next digit (9) of the dividend behind the 423 and repeat the process: 4239 / 589

Step 4:
589 goes into 4239 7 times with a remainder of 116.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 116 after subtracting 4123 from 4239.
Take the next digit (0) from the dividend and append it to 116, then repeat: 1160 / 589

Moving on to step 5:
589 can be fit into 1160 1 times, resulting in a remainder of 571.
Write down 1 as next digit of the result. 
Result so far: 71.0
Subtract 589 from 1160 to get 571.
Bring next digit (9) of the dividend behind the 571 and repeat the process: 5719 / 589

Let's proceed to step 6:
When dividing 5719 by 589, we get 9 with a remainder of 418.
Write down 9 as next digit of the result. 
Result so far: 719.0
Deduct 5301 from 5719 and we're left with 418.
Take the next digit (0) from the dividend and append it to 418, then repeat: 4180 / 589

Moving on to step 7:
When dividing 4180 by 589, we get 7 with a remainder of 57.
The next digit of our result is 7. 
Result so far: 7197.0
Subtract 4123 from 4180 to get 57.
Fetch the next digit (5) from the dividend, attach it to 57 and continue: 575 / 589

Moving on to step 8:
589 can be fit into 575 0 times, resulting in a remainder of 575.
Write down 0 as next digit of the result. 
Result so far: 71970.0
Subtract 0 from 575 to get 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

On to step 9:
589 goes into 5750 9 times with a remainder of 449.
The next digit of our result is 9. 
Result so far: 71970.9
Subtracting 5301 from 5750 leaves us with 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

Advancing to step 10:
If we divide 4490 by 589, we get 7 and a remainder of 367.
Write down 7 as next digit of the result. 
Result so far: 71970.97
If we subtract 4123 from 4490, we get 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

On to step 11:
The number 589 fits into 3670 6 times, leaving a remainder of 136.
The number 6 becomes the next digit in our result. 
Result so far: 71970.976
Subtract 3534 from 3670 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 12:
589 goes into 1360 2 times with a remainder of 182.
The next digit of our result is 2. 
Result so far: 71970.9762
Deduct 1178 from 1360 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 13:
589 goes into 1820 3 times with a remainder of 53.
The number 3 becomes the next digit in our result. 
Result so far: 71970.97623
If we take 1767 away from 1820, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 14:
When dividing 530 by 589, we get 0 with a remainder of 530.
The number 0 becomes the next digit in our result. 
Result so far: 71970.97623
Deduct 0 from 530 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Advancing to step 15:
589 can be fit into 5300 8 times, resulting in a remainder of 588.
The number 8 becomes the next digit in our result. 
Result so far: 71970.9762308
Subtracting 4712 from 5300 leaves us with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

On to step 16:
5880 divided by 589 is 9 with a remainder of 579.
Write down 9 as next digit of the result. 
Result so far: 71970.97623089
Subtract 5301 from 5880 to get 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

In conclusion, the division gives 71970.97623089 with a balance of 5.79e-07.