46436399 divided by 45 
We want to figure out the number of times 46436399 can be divided by 45.

Going ahead to step 1:
45 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 45

On to step 2:
46 divided by 45 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 45 away from 46, we end up with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 45

Let's proceed to step 3:
The number 45 fits into 14 0 times, leaving a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 14, we get 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 45

Let's proceed to step 4:
The number 45 fits into 143 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 103.0
Subtract 135 from 143 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 45

Advancing to step 5:
45 goes into 86 1 times with a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 1031.0
Subtracting 45 from 86 leaves us with 41.
Include the next digit (3) from the dividend after 41, then repeat: 413 / 45

Let's proceed to step 6:
When dividing 413 by 45, we get 9 with a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 10319.0
If we take 405 away from 413, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 45

On to step 7:
45 goes into 89 1 times with a remainder of 44.
Use 1 as the next digit of our solution. 
Result so far: 103191.0
Subtract 45 from 89 to get 44.
Append the next digit (9) from the dividend to 44 and continue with: 449 / 45

Advancing to step 8:
The number 45 fits into 449 9 times, leaving a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 1031919.0
If we subtract 405 from 449, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
45 can be fit into 440 9 times, resulting in a remainder of 35.
Put 9 as the next digit of the answer. 
Result so far: 1031919.9
Subtracting 405 from 440 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 10:
When dividing 350 by 45, we get 7 with a remainder of 35.
The next digit of our result is 7. 
Result so far: 1031919.97
If we take 315 away from 350, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 11:
350 divided by 45 is 7 with a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 1031919.977
Deduct 315 from 350 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final outcome is 1031919.977, with a leftover of 0.0035.