121557 ÷ 73 
Our goal is to divide 121557 by 73.

Let's proceed to step 1:
73 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 73

Step 2:
73 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 73

Let's proceed to step 3:
73 can be fit into 121 1 times, resulting in a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 73 away from 121, we end up with 48.
Bring next digit (5) of the dividend behind the 48 and repeat the process: 485 / 73

Moving on to step 4:
When dividing 485 by 73, we get 6 with a remainder of 47.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 438 away from 485, we end up with 47.
Append the next digit (5) from the dividend to 47 and continue with: 475 / 73

Going ahead to step 5:
73 can be fit into 475 6 times, resulting in a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 166.0
Subtracting 438 from 475 leaves us with 37.
Take the next digit (7) from the dividend and append it to 37, then repeat: 377 / 73

Step 6:
If we divide 377 by 73, we get 5 and a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 1665.0
The remainder is 12 after subtracting 365 from 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
If we divide 120 by 73, we get 1 and a remainder of 47.
The number 1 becomes the next digit in our result. 
Result so far: 1665.1
If we take 73 away from 120, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 8:
If we divide 470 by 73, we get 6 and a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 1665.16
If we subtract 438 from 470, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
When dividing 320 by 73, we get 4 with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 1665.164
The remainder is 28 after subtracting 292 from 320.
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 10:
The number 73 fits into 280 3 times, leaving a remainder of 61.
Put 3 as the next digit of the answer. 
Result so far: 1665.1643
The remainder is 61 after subtracting 219 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 11:
The number 73 fits into 610 8 times, leaving a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 1665.16438
Subtract 584 from 610 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 12:
260 divided by 73 is 3 with a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 1665.164383
Deduct 219 from 260 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 13:
If we divide 410 by 73, we get 5 and a remainder of 45.
The next digit of our result is 5. 
Result so far: 1665.1643835
Subtracting 365 from 410 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 14:
73 can be fit into 450 6 times, resulting in a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 1665.16438356
Subtract 438 from 450 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 1665.16438356 with a remaining 1.2e-08.