Let's divide 151285 by 40
We want to divide 151285 by 40.

Going ahead to step 1:
40 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 40

On to step 2:
40 can be fit into 15 0 times, resulting in a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 40

On to step 3:
If we divide 151 by 40, we get 3 and a remainder of 31.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 120 from 151 leaves us with 31.
Include the next digit (2) from the dividend after 31, then repeat: 312 / 40

Moving on to step 4:
When dividing 312 by 40, we get 7 with a remainder of 32.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 280 from 312 leaves us with 32.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 40

Going ahead to step 5:
328 divided by 40 is 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 378.0
Subtract 320 from 328 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 40

Moving on to step 6:
When dividing 85 by 40, we get 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 3782.0
Deduct 80 from 85 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
If we divide 50 by 40, we get 1 and a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 3782.1
If we subtract 40 from 50, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 40, we get 2 and a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 3782.12
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.

Moving on to step 9:
200 divided by 40 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 3782.125
Subtract 200 from 200 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.

Advancing to step 10:
If we divide 0 by 40, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3782.125
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.

Moving on to step 11:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3782.125
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.

In conclusion, the division gives 3782.125 with a balance of 0.0.