187583 divided by 40 
Our goal is to divide 187583 by 40.

Going ahead to step 1:
40 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 40

Going ahead to step 2:
If we divide 18 by 40, we get 0 and a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Fetch the next digit (7) from the dividend, attach it to 18 and continue: 187 / 40

Step 3:
The number 40 fits into 187 4 times, leaving a remainder of 27.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 27 after subtracting 160 from 187.
Bring next digit (5) of the dividend behind the 27 and repeat the process: 275 / 40

Moving on to step 4:
40 can be fit into 275 6 times, resulting in a remainder of 35.
Write down 6 as next digit of the result. 
Result so far: 46.0
If we subtract 240 from 275, we get 35.
Bring next digit (8) of the dividend behind the 35 and repeat the process: 358 / 40

Let's proceed to step 5:
If we divide 358 by 40, we get 8 and a remainder of 38.
The next digit of our result is 8. 
Result so far: 468.0
The remainder is 38 after subtracting 320 from 358.
Bring next digit (3) of the dividend behind the 38 and repeat the process: 383 / 40

Going ahead to step 6:
The number 40 fits into 383 9 times, leaving a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 4689.0
If we take 360 away from 383, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
40 can be fit into 230 5 times, resulting in a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 4689.5
Deduct 200 from 230 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 40, we get 7 with a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 4689.57
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
When dividing 200 by 40, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 4689.575
Deduct 200 from 200 and we're left 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.

Step 10:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4689.575
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.

Going ahead to step 11:
0 divided by 40 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4689.575
Deduct 0 from 0 and we're left 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.

The final outcome is 4689.575, with a leftover of 0.0.