45960012 divided by 90 
Our goal is to divide 45960012 by 90.

Going ahead to step 1:
90 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 90

Advancing to step 2:
45 divided by 90 is 0 with a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Take the next digit (9) from the dividend and append it to 45, then repeat: 459 / 90

Moving on to step 3:
If we divide 459 by 90, we get 5 and a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 450 away from 459, we end up with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 90

Going ahead to step 4:
When dividing 96 by 90, we get 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
Deduct 90 from 96 and we're left with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 90

Advancing to step 5:
When dividing 60 by 90, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 510.0
The remainder is 60 after subtracting 0 from 60.
Grab the next digit (0) from the dividend, add it to 60, then carry on: 600 / 90

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: 5106.0
Subtracting 540 from 600 leaves us with 60.
Grab the next digit (1) from the dividend, add it to 60, then carry on: 601 / 90

Moving on to step 7:
90 can be fit into 601 6 times, resulting in a remainder of 61.
The next digit of our result is 6. 
Result so far: 51066.0
Subtract 540 from 601 to get 61.
Include the next digit (2) from the dividend after 61, then repeat: 612 / 90

Advancing to step 8:
When dividing 612 by 90, we get 6 with a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 510666.0
Subtract 540 from 612 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
If we divide 720 by 90, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 510666.8
Deduct 720 from 720 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
90 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 510666.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
The number 90 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 510666.8
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 510666.8 and a remainder of 0.0.