We look at the division of 613436 by 90 
We're looking to find how many times 90 goes into 613436.

Going ahead to step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 90

Advancing to step 2:
90 can be fit into 61 0 times, resulting in a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 61, we get 61.
Take the next digit (3) from the dividend and append it to 61, then repeat: 613 / 90

On to step 3:
If we divide 613 by 90, we get 6 and a remainder of 73.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 540 from 613 and we're left with 73.
Bring next digit (4) of the dividend behind the 73 and repeat the process: 734 / 90

Advancing to step 4:
When dividing 734 by 90, we get 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 68.0
If we subtract 720 from 734, we get 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 90

Step 5:
When dividing 143 by 90, we get 1 with a remainder of 53.
The next digit of our result is 1. 
Result so far: 681.0
If we take 90 away from 143, we end up with 53.
Append the next digit (6) from the dividend to 53 and continue with: 536 / 90

Moving on to step 6:
536 divided by 90 is 5 with a remainder of 86.
Put 5 as the next digit of the answer. 
Result so far: 6815.0
Deduct 450 from 536 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 7:
If we divide 860 by 90, we get 9 and a remainder of 50.
Write down 9 as next digit of the result. 
Result so far: 6815.9
The remainder is 50 after subtracting 810 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
90 can be fit into 500 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 6815.95
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
90 goes into 500 5 times with a remainder of 50.
The next digit of our result is 5. 
Result so far: 6815.955
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 6815.955, with a leftover of 0.005.