We divide 3738663 by 90
We're looking to find how many times 90 goes into 3738663.

Step 1:
90 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 90

Moving on to step 2:
90 goes into 37 0 times with a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Bring next digit (3) of the dividend behind the 37 and repeat the process: 373 / 90

Let's proceed to step 3:
When dividing 373 by 90, we get 4 with a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 360 from 373, we get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 90

Step 4:
When dividing 138 by 90, we get 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 41.0
Subtracting 90 from 138 leaves us with 48.
Take the next digit (6) from the dividend and append it to 48, then repeat: 486 / 90

Let's proceed to step 5:
486 divided by 90 is 5 with a remainder of 36.
Use 5 as the next digit of our solution. 
Result so far: 415.0
If we take 450 away from 486, we end up with 36.
Fetch the next digit (6) from the dividend, attach it to 36 and continue: 366 / 90

Moving on to step 6:
90 can be fit into 366 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 4154.0
Subtract 360 from 366 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 90

Moving on to step 7:
If we divide 63 by 90, we get 0 and a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 41540.0
Subtracting 0 from 63 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 8:
630 divided by 90 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 41540.7
If we subtract 630 from 630, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 41540.7
The remainder is 0 after subtracting 0 from 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 10:
90 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 41540.7
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 41540.7, with a leftover of 0.0.