We look at the division of 73410 by 90 
We want to divide 73410 by 90.

Step 1:
When dividing 7 by 90, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 90

On to step 2:
90 goes into 73 0 times with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Append the next digit (4) from the dividend to 73 and continue with: 734 / 90

On to step 3:
If we divide 734 by 90, we get 8 and a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 720 from 734 and we're left with 14.
Bring next digit (1) of the dividend behind the 14 and repeat the process: 141 / 90

Step 4:
141 divided by 90 is 1 with a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 81.0
The remainder is 51 after subtracting 90 from 141.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 90

On to step 5:
90 can be fit into 510 5 times, resulting in a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 815.0
If we subtract 450 from 510, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 6:
90 goes into 600 6 times with a remainder of 60.
Put 6 as the next digit of the answer. 
Result so far: 815.6
Subtract 540 from 600 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 7:
When dividing 600 by 90, we get 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 815.66
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 815.66 and a remainder of 0.06.