We divide 42291421 by 853
Let's see how many times 853 fits into 42291421.

Going ahead to step 1:
When dividing 4 by 853, we get 0 with a remainder of 4.
The next digit of our result is 0. 
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 / 853

Moving on to step 2:
The number 853 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 853

Let's proceed to step 3:
If we divide 422 by 853, we get 0 and a remainder of 422.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 422, we get 422.
Include the next digit (9) from the dividend after 422, then repeat: 4229 / 853

Let's proceed to step 4:
853 goes into 4229 4 times with a remainder of 817.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 3412 from 4229, we get 817.
Fetch the next digit (1) from the dividend, attach it to 817 and continue: 8171 / 853

Let's proceed to step 5:
853 goes into 8171 9 times with a remainder of 494.
Use 9 as the next digit of our solution. 
Result so far: 49.0
Subtracting 7677 from 8171 leaves us with 494.
Append the next digit (4) from the dividend to 494 and continue with: 4944 / 853

Let's proceed to step 6:
853 goes into 4944 5 times with a remainder of 679.
The number 5 becomes the next digit in our result. 
Result so far: 495.0
If we subtract 4265 from 4944, we get 679.
Bring next digit (2) of the dividend behind the 679 and repeat the process: 6792 / 853

On to step 7:
853 can be fit into 6792 7 times, resulting in a remainder of 821.
Put 7 as the next digit of the answer. 
Result so far: 4957.0
Subtracting 5971 from 6792 leaves us with 821.
Grab the next digit (1) from the dividend, add it to 821, then carry on: 8211 / 853

On to step 8:
When dividing 8211 by 853, we get 9 with a remainder of 534.
Record the quotient 9 as the next digit in the result. 
Result so far: 49579.0
Deduct 7677 from 8211 and we're left with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Going ahead to step 9:
853 goes into 5340 6 times with a remainder of 222.
Use 6 as the next digit of our solution. 
Result so far: 49579.6
The remainder is 222 after subtracting 5118 from 5340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 10:
If we divide 2220 by 853, we get 2 and a remainder of 514.
The next digit of our result is 2. 
Result so far: 49579.62
The remainder is 514 after subtracting 1706 from 2220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

On to step 11:
When dividing 5140 by 853, we get 6 with a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 49579.626
Subtracting 5118 from 5140 leaves us 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.

Moving on to step 12:
220 divided by 853 is 0 with a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 49579.626
If we subtract 0 from 220, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 13:
853 can be fit into 2200 2 times, resulting in a remainder of 494.
The number 2 becomes the next digit in our result. 
Result so far: 49579.62602
Subtract 1706 from 2200 to get 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

On to step 14:
4940 divided by 853 is 5 with a remainder of 675.
The number 5 becomes the next digit in our result. 
Result so far: 49579.626025
Deduct 4265 from 4940 and we're left with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Let's proceed to step 15:
The number 853 fits into 6750 7 times, leaving a remainder of 779.
Record the quotient 7 as the next digit in the result. 
Result so far: 49579.6260257
The remainder is 779 after subtracting 5971 from 6750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7790, and continue the process.

Advancing to step 16:
853 goes into 7790 9 times with a remainder of 113.
The next digit of our result is 9. 
Result so far: 49579.62602579
Subtracting 7677 from 7790 leaves us with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

The final outcome is 49579.62602579, with a leftover of 1.13e-07.