537412 ÷ 90 
We want to figure out the number of times 537412 can be divided by 90.

On to step 1:
The number 90 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 90

Going ahead to step 2:
The number 90 fits into 53 0 times, leaving a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Include the next digit (7) from the dividend after 53, then repeat: 537 / 90

Step 3:
When dividing 537 by 90, we get 5 with a remainder of 87.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 450 from 537 leaves us with 87.
Bring next digit (4) of the dividend behind the 87 and repeat the process: 874 / 90

On to step 4:
90 can be fit into 874 9 times, resulting in a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we subtract 810 from 874, we get 64.
Include the next digit (1) from the dividend after 64, then repeat: 641 / 90

Step 5:
641 divided by 90 is 7 with a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 597.0
If we take 630 away from 641, we end up with 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 90

Going ahead to step 6:
The number 90 fits into 112 1 times, leaving a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 5971.0
Subtracting 90 from 112 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
90 can be fit into 220 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 5971.2
Deduct 180 from 220 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
The number 90 fits into 400 4 times, leaving a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 5971.24
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 5971.244
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 5971.244 and a remainder of 0.004.