We look at the division of 31221534 by 154 
We want to divide 31221534 by 154.

Let's proceed to step 1:
154 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 154

Let's proceed to step 2:
154 goes into 31 0 times with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 154

On to step 3:
154 goes into 312 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 4 after subtracting 308 from 312.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 154

Going ahead to step 4:
154 goes into 42 0 times with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 154

Let's proceed to step 5:
When dividing 421 by 154, we get 2 with a remainder of 113.
The next digit of our result is 2. 
Result so far: 202.0
The remainder is 113 after subtracting 308 from 421.
Bring next digit (5) of the dividend behind the 113 and repeat the process: 1135 / 154

Advancing to step 6:
154 can be fit into 1135 7 times, resulting in a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 2027.0
If we take 1078 away from 1135, we end up with 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 154

Advancing to step 7:
154 goes into 573 3 times with a remainder of 111.
Put 3 as the next digit of the answer. 
Result so far: 20273.0
If we take 462 away from 573, we end up with 111.
Bring next digit (4) of the dividend behind the 111 and repeat the process: 1114 / 154

Step 8:
When dividing 1114 by 154, we get 7 with a remainder of 36.
The number 7 becomes the next digit in our result. 
Result so far: 202737.0
Subtract 1078 from 1114 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 9:
154 can be fit into 360 2 times, resulting in a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 202737.2
The remainder is 52 after subtracting 308 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 10:
520 divided by 154 is 3 with a remainder of 58.
Write down 3 as next digit of the result. 
Result so far: 202737.23
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 11:
If we divide 580 by 154, we get 3 and a remainder of 118.
Write down 3 as next digit of the result. 
Result so far: 202737.233
If we take 462 away from 580, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Our division results in 202737.233 with a remaining 0.0118.