42589905 divided by 721 
Let's see how many times 721 fits into 42589905.

Going ahead to step 1:
4 divided by 721 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 721

Advancing to step 2:
If we divide 42 by 721, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 721

Advancing to step 3:
The number 721 fits into 425 0 times, leaving a remainder of 425.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 425 after subtracting 0 from 425.
Include the next digit (8) from the dividend after 425, then repeat: 4258 / 721

On to step 4:
721 can be fit into 4258 5 times, resulting in a remainder of 653.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 653 after subtracting 3605 from 4258.
Append the next digit (9) from the dividend to 653 and continue with: 6539 / 721

On to step 5:
721 goes into 6539 9 times with a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we take 6489 away from 6539, we end up with 50.
Append the next digit (9) from the dividend to 50 and continue with: 509 / 721

On to step 6:
When dividing 509 by 721, we get 0 with a remainder of 509.
Put 0 as the next digit of the answer. 
Result so far: 590.0
Deduct 0 from 509 and we're left with 509.
Take the next digit (0) from the dividend and append it to 509, then repeat: 5090 / 721

Step 7:
If we divide 5090 by 721, we get 7 and a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 5907.0
Deduct 5047 from 5090 and we're left with 43.
Take the next digit (5) from the dividend and append it to 43, then repeat: 435 / 721

Let's proceed to step 8:
721 goes into 435 0 times with a remainder of 435.
Use 0 as the next digit of our solution. 
Result so far: 59070.0
Deduct 0 from 435 and we're left with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Moving on to step 9:
The number 721 fits into 4350 6 times, leaving a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 59070.6
If we take 4326 away from 4350, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
240 divided by 721 is 0 with a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 59070.6
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 11:
721 can be fit into 2400 3 times, resulting in a remainder of 237.
Record the quotient 3 as the next digit in the result. 
Result so far: 59070.603
Subtracting 2163 from 2400 leaves us with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Advancing to step 12:
If we divide 2370 by 721, we get 3 and a remainder of 207.
Write down 3 as next digit of the result. 
Result so far: 59070.6033
Subtract 2163 from 2370 to get 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

In conclusion, the division gives 59070.6033 with a balance of 0.00207.