We divide 121388 by 40
We're looking to find how many times 40 goes into 121388.

Going ahead to step 1:
The number 40 fits into 1 0 times, leaving 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 (2) from the dividend after 1, then repeat: 12 / 40

Moving on to step 2:
If we divide 12 by 40, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 40

Advancing to step 3:
121 divided by 40 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 120 from 121 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 40

Moving on to step 4:
When dividing 13 by 40, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 30.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 40

Step 5:
138 divided by 40 is 3 with a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 303.0
Subtract 120 from 138 to get 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 40

On to step 6:
If we divide 188 by 40, we get 4 and a remainder of 28.
The next digit of our result is 4. 
Result so far: 3034.0
Subtracting 160 from 188 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
If we divide 280 by 40, we get 7 and a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 3034.7
Subtracting 280 from 280 leaves us 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.

Moving on to step 8:
40 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3034.7
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.

Step 9:
When dividing 0 by 40, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3034.7
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.

In conclusion, the division gives 3034.7 with a balance of 0.0.