Let's divide 42458458 by 291
We want to figure out the number of times 42458458 can be divided by 291.

Let's proceed to step 1:
291 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 291

Going ahead to step 2:
If we divide 42 by 291, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 291

Going ahead to step 3:
If we divide 424 by 291, we get 1 and a remainder of 133.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 291 from 424 and we're left with 133.
Bring next digit (5) of the dividend behind the 133 and repeat the process: 1335 / 291

Moving on to step 4:
The number 291 fits into 1335 4 times, leaving a remainder of 171.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we subtract 1164 from 1335, we get 171.
Include the next digit (8) from the dividend after 171, then repeat: 1718 / 291

On to step 5:
If we divide 1718 by 291, we get 5 and a remainder of 263.
Record the quotient 5 as the next digit in the result. 
Result so far: 145.0
Subtracting 1455 from 1718 leaves us with 263.
Fetch the next digit (4) from the dividend, attach it to 263 and continue: 2634 / 291

Moving on to step 6:
When dividing 2634 by 291, we get 9 with a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 1459.0
Subtract 2619 from 2634 to get 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 291

Moving on to step 7:
291 goes into 155 0 times with a remainder of 155.
The next digit of our result is 0. 
Result so far: 14590.0
Subtracting 0 from 155 leaves us with 155.
Include the next digit (8) from the dividend after 155, then repeat: 1558 / 291

Going ahead to step 8:
291 goes into 1558 5 times with a remainder of 103.
Put 5 as the next digit of the answer. 
Result so far: 145905.0
Subtracting 1455 from 1558 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 9:
291 goes into 1030 3 times with a remainder of 157.
The number 3 becomes the next digit in our result. 
Result so far: 145905.3
If we take 873 away from 1030, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Going ahead to step 10:
The number 291 fits into 1570 5 times, leaving a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 145905.35
Subtracting 1455 from 1570 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 11:
291 can be fit into 1150 3 times, resulting in a remainder of 277.
The number 3 becomes the next digit in our result. 
Result so far: 145905.353
If we subtract 873 from 1150, we get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

On to step 12:
When dividing 2770 by 291, we get 9 with a remainder of 151.
The next digit of our result is 9. 
Result so far: 145905.3539
Subtracting 2619 from 2770 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Going ahead to step 13:
When dividing 1510 by 291, we get 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 145905.35395
If we subtract 1455 from 1510, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 14:
291 can be fit into 550 1 times, resulting in a remainder of 259.
Write down 1 as next digit of the result. 
Result so far: 145905.353951
The remainder is 259 after subtracting 291 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Let's proceed to step 15:
291 goes into 2590 8 times with a remainder of 262.
The number 8 becomes the next digit in our result. 
Result so far: 145905.3539518
The remainder is 262 after subtracting 2328 from 2590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Let's proceed to step 16:
2620 divided by 291 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 145905.35395189
Subtract 2619 from 2620 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.

After the division, we end up with 145905.35395189 and a remainder of 1e-09.