We look at the division of 42891493 by 904 
Let's see how many times 904 fits into 42891493.

Going ahead to step 1:
When dividing 4 by 904, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 904

Moving on to step 2:
904 goes into 42 0 times with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 904

Going ahead to step 3:
904 goes into 428 0 times with a remainder of 428.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 428, we get 428.
Include the next digit (9) from the dividend after 428, then repeat: 4289 / 904

Step 4:
The number 904 fits into 4289 4 times, leaving a remainder of 673.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 3616 from 4289, we get 673.
Take the next digit (1) from the dividend and append it to 673, then repeat: 6731 / 904

Step 5:
6731 divided by 904 is 7 with a remainder of 403.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
If we take 6328 away from 6731, we end up with 403.
Fetch the next digit (4) from the dividend, attach it to 403 and continue: 4034 / 904

Going ahead to step 6:
904 can be fit into 4034 4 times, resulting in a remainder of 418.
The next digit of our result is 4. 
Result so far: 474.0
If we subtract 3616 from 4034, we get 418.
Append the next digit (9) from the dividend to 418 and continue with: 4189 / 904

Let's proceed to step 7:
904 goes into 4189 4 times with a remainder of 573.
The number 4 becomes the next digit in our result. 
Result so far: 4744.0
Subtracting 3616 from 4189 leaves us with 573.
Include the next digit (3) from the dividend after 573, then repeat: 5733 / 904

Going ahead to step 8:
The number 904 fits into 5733 6 times, leaving a remainder of 309.
Use 6 as the next digit of our solution. 
Result so far: 47446.0
If we take 5424 away from 5733, we end up with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Moving on to step 9:
If we divide 3090 by 904, we get 3 and a remainder of 378.
Record the quotient 3 as the next digit in the result. 
Result so far: 47446.3
Subtracting 2712 from 3090 leaves us with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Advancing to step 10:
When dividing 3780 by 904, we get 4 with a remainder of 164.
Record the quotient 4 as the next digit in the result. 
Result so far: 47446.34
If we subtract 3616 from 3780, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 11:
The number 904 fits into 1640 1 times, leaving a remainder of 736.
Put 1 as the next digit of the answer. 
Result so far: 47446.341
The remainder is 736 after subtracting 904 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

Step 12:
904 goes into 7360 8 times with a remainder of 128.
Write down 8 as next digit of the result. 
Result so far: 47446.3418
Deduct 7232 from 7360 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 13:
If we divide 1280 by 904, we get 1 and a remainder of 376.
Record the quotient 1 as the next digit in the result. 
Result so far: 47446.34181
Subtracting 904 from 1280 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

On to step 14:
3760 divided by 904 is 4 with a remainder of 144.
Write down 4 as next digit of the result. 
Result so far: 47446.341814
The remainder is 144 after subtracting 3616 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 15:
904 goes into 1440 1 times with a remainder of 536.
Record the quotient 1 as the next digit in the result. 
Result so far: 47446.3418141
Subtract 904 from 1440 to get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 16:
When dividing 5360 by 904, we get 5 with a remainder of 840.
The next digit of our result is 5. 
Result so far: 47446.34181415
The remainder is 840 after subtracting 4520 from 5360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

The final outcome is 47446.34181415, with a leftover of 8.4e-07.