We look at the division of 89405965 by 604 
We want to divide 89405965 by 604.

Advancing to step 1:
If we divide 8 by 604, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 604

On to step 2:
604 goes into 89 0 times with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 89, we end up with 89.
Include the next digit (4) from the dividend after 89, then repeat: 894 / 604

Going ahead to step 3:
604 can be fit into 894 1 times, resulting in a remainder of 290.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 604 from 894, we get 290.
Include the next digit (0) from the dividend after 290, then repeat: 2900 / 604

Advancing to step 4:
604 can be fit into 2900 4 times, resulting in a remainder of 484.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 2416 from 2900 to get 484.
Bring next digit (5) of the dividend behind the 484 and repeat the process: 4845 / 604

Advancing to step 5:
604 can be fit into 4845 8 times, resulting in a remainder of 13.
The next digit of our result is 8. 
Result so far: 148.0
Subtracting 4832 from 4845 leaves us with 13.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 604

On to step 6:
If we divide 139 by 604, we get 0 and a remainder of 139.
The next digit of our result is 0. 
Result so far: 1480.0
Subtracting 0 from 139 leaves us with 139.
Take the next digit (6) from the dividend and append it to 139, then repeat: 1396 / 604

Going ahead to step 7:
When dividing 1396 by 604, we get 2 with a remainder of 188.
Use 2 as the next digit of our solution. 
Result so far: 14802.0
The remainder is 188 after subtracting 1208 from 1396.
Include the next digit (5) from the dividend after 188, then repeat: 1885 / 604

Advancing to step 8:
1885 divided by 604 is 3 with a remainder of 73.
Record the quotient 3 as the next digit in the result. 
Result so far: 148023.0
If we take 1812 away from 1885, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 9:
730 divided by 604 is 1 with a remainder of 126.
Record the quotient 1 as the next digit in the result. 
Result so far: 148023.1
Subtract 604 from 730 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 10:
If we divide 1260 by 604, we get 2 and a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 148023.12
Subtract 1208 from 1260 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 11:
520 divided by 604 is 0 with a remainder of 520.
Put 0 as the next digit of the answer. 
Result so far: 148023.12
If we subtract 0 from 520, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Advancing to step 12:
604 goes into 5200 8 times with a remainder of 368.
Put 8 as the next digit of the answer. 
Result so far: 148023.1208
If we take 4832 away from 5200, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 13:
When dividing 3680 by 604, we get 6 with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 148023.12086
If we take 3624 away from 3680, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
560 divided by 604 is 0 with a remainder of 560.
Use 0 as the next digit of our solution. 
Result so far: 148023.12086
The remainder is 560 after subtracting 0 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 15:
604 goes into 5600 9 times with a remainder of 164.
Use 9 as the next digit of our solution. 
Result so far: 148023.1208609
If we subtract 5436 from 5600, 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.

On to step 16:
If we divide 1640 by 604, we get 2 and a remainder of 432.
Use 2 as the next digit of our solution. 
Result so far: 148023.12086092
Deduct 1208 from 1640 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

The final outcome is 148023.12086092, with a leftover of 4.32e-07.