Let's divide 16986736 by 40
We want to divide 16986736 by 40.

Going ahead to step 1:
When dividing 1 by 40, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 40

Advancing to step 2:
40 can be fit into 16 0 times, resulting in a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Take the next digit (9) from the dividend and append it to 16, then repeat: 169 / 40

Moving on to step 3:
169 divided by 40 is 4 with a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 160 away from 169, we end up with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 40

Let's proceed to step 4:
The number 40 fits into 98 2 times, leaving a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtracting 80 from 98 leaves us with 18.
Grab the next digit (6) from the dividend, add it to 18, then carry on: 186 / 40

Step 5:
40 can be fit into 186 4 times, resulting in a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 424.0
If we take 160 away from 186, we end up with 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 40

Let's proceed to step 6:
40 can be fit into 267 6 times, resulting in a remainder of 27.
Use 6 as the next digit of our solution. 
Result so far: 4246.0
If we subtract 240 from 267, we get 27.
Append the next digit (3) from the dividend to 27 and continue with: 273 / 40

Advancing to step 7:
273 divided by 40 is 6 with a remainder of 33.
The next digit of our result is 6. 
Result so far: 42466.0
If we subtract 240 from 273, we get 33.
Take the next digit (6) from the dividend and append it to 33, then repeat: 336 / 40

Going ahead to step 8:
The number 40 fits into 336 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 424668.0
Subtracting 320 from 336 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
If we divide 160 by 40, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 424668.4
If we take 160 away from 160, we end up 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:
40 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 424668.4
Subtract 0 from 0 to 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.

Going ahead to step 11:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 424668.4
Subtract 0 from 0 to 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.

After the division, we end up with 424668.4 and a remainder of 0.0.