445169 ÷ 40 
We're looking to find how many times 40 goes into 445169.

On to step 1:
When dividing 4 by 40, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 40

On to step 2:
When dividing 44 by 40, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 4 after subtracting 40 from 44.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 40

On to step 3:
40 goes into 45 1 times with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 5 after subtracting 40 from 45.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 40

Step 4:
When dividing 51 by 40, we get 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 111.0
Subtracting 40 from 51 leaves us with 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 40

Let's proceed to step 5:
When dividing 116 by 40, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 1112.0
Subtract 80 from 116 to get 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 40

Step 6:
369 divided by 40 is 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 11129.0
The remainder is 9 after subtracting 360 from 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
When dividing 90 by 40, we get 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 11129.2
Subtracting 80 from 90 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
40 can be fit into 100 2 times, resulting in a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 11129.22
Deduct 80 from 100 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 11129.22, with a leftover of 0.02.