71379558 divided by 904 
We want to figure out the number of times 71379558 can be divided by 904.

Moving on to step 1:
904 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 904

Going ahead to step 2:
If we divide 71 by 904, we get 0 and a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Bring next digit (3) of the dividend behind the 71 and repeat the process: 713 / 904

Moving on to step 3:
If we divide 713 by 904, we get 0 and a remainder of 713.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 713 leaves us with 713.
Include the next digit (7) from the dividend after 713, then repeat: 7137 / 904

Let's proceed to step 4:
When dividing 7137 by 904, we get 7 with a remainder of 809.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 6328 from 7137, we get 809.
Take the next digit (9) from the dividend and append it to 809, then repeat: 8099 / 904

Going ahead to step 5:
When dividing 8099 by 904, we get 8 with a remainder of 867.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtract 7232 from 8099 to get 867.
Bring next digit (5) of the dividend behind the 867 and repeat the process: 8675 / 904

Going ahead to step 6:
8675 divided by 904 is 9 with a remainder of 539.
Use 9 as the next digit of our solution. 
Result so far: 789.0
Subtracting 8136 from 8675 leaves us with 539.
Fetch the next digit (5) from the dividend, attach it to 539 and continue: 5395 / 904

Advancing to step 7:
904 goes into 5395 5 times with a remainder of 875.
Write down 5 as next digit of the result. 
Result so far: 7895.0
Subtracting 4520 from 5395 leaves us with 875.
Include the next digit (8) from the dividend after 875, then repeat: 8758 / 904

On to step 8:
904 can be fit into 8758 9 times, resulting in a remainder of 622.
Use 9 as the next digit of our solution. 
Result so far: 78959.0
The remainder is 622 after subtracting 8136 from 8758.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Going ahead to step 9:
6220 divided by 904 is 6 with a remainder of 796.
Use 6 as the next digit of our solution. 
Result so far: 78959.6
If we subtract 5424 from 6220, we get 796.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7960, and continue the process.

On to step 10:
When dividing 7960 by 904, we get 8 with a remainder of 728.
Write down 8 as next digit of the result. 
Result so far: 78959.68
The remainder is 728 after subtracting 7232 from 7960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7280, and continue the process.

Step 11:
904 can be fit into 7280 8 times, resulting in a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 78959.688
The remainder is 48 after subtracting 7232 from 7280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 78959.688, with a leftover of 0.0048.