Let's divide 90045164 by 23
We want to figure out the number of times 90045164 can be divided by 23.

Going ahead to step 1:
The number 23 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 23

On to step 2:
23 can be fit into 90 3 times, resulting in a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 69 from 90 leaves us with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 23

Advancing to step 3:
23 can be fit into 210 9 times, resulting in a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 207 from 210, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 23

Moving on to step 4:
34 divided by 23 is 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 391.0
If we subtract 23 from 34, we get 11.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 23

Let's proceed to step 5:
If we divide 115 by 23, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3915.0
If we subtract 115 from 115, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 23

Moving on to step 6:
The number 23 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 39150.0
If we take 0 away from 1, we end up with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 23

Step 7:
When dividing 16 by 23, we get 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 391500.0
If we take 0 away from 16, we end up with 16.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 23

Moving on to step 8:
23 goes into 164 7 times with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 3915007.0
Deduct 161 from 164 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
30 divided by 23 is 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 3915007.1
The remainder is 7 after subtracting 23 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
70 divided by 23 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3915007.13
If we subtract 69 from 70, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 11:
23 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 3915007.13
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
When dividing 100 by 23, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 3915007.1304
Subtract 92 from 100 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 13:
If we divide 80 by 23, we get 3 and a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 3915007.13043
Deduct 69 from 80 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 14:
110 divided by 23 is 4 with a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 3915007.130434
If we take 92 away from 110, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 15:
If we divide 180 by 23, we get 7 and a remainder of 19.
The next digit of our result is 7. 
Result so far: 3915007.1304347
Subtracting 161 from 180 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 16:
23 goes into 190 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 3915007.13043478
Subtracting 184 from 190 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 3915007.13043478, with a leftover of 6e-09.