We're dividing 74981561 by 121 
We want to divide 74981561 by 121.

Advancing to step 1:
If we divide 7 by 121, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 121

Step 2:
The number 121 fits into 74 0 times, leaving a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Grab the next digit (9) from the dividend, add it to 74, then carry on: 749 / 121

Moving on to step 3:
The number 121 fits into 749 6 times, leaving a remainder of 23.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 726 from 749, we get 23.
Take the next digit (8) from the dividend and append it to 23, then repeat: 238 / 121

Going ahead to step 4:
When dividing 238 by 121, we get 1 with a remainder of 117.
The number 1 becomes the next digit in our result. 
Result so far: 61.0
Deduct 121 from 238 and we're left with 117.
Grab the next digit (1) from the dividend, add it to 117, then carry on: 1171 / 121

Moving on to step 5:
If we divide 1171 by 121, we get 9 and a remainder of 82.
Use 9 as the next digit of our solution. 
Result so far: 619.0
Subtracting 1089 from 1171 leaves us with 82.
Bring next digit (5) of the dividend behind the 82 and repeat the process: 825 / 121

Step 6:
If we divide 825 by 121, we get 6 and a remainder of 99.
The next digit of our result is 6. 
Result so far: 6196.0
If we subtract 726 from 825, we get 99.
Append the next digit (6) from the dividend to 99 and continue with: 996 / 121

Let's proceed to step 7:
If we divide 996 by 121, we get 8 and a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 61968.0
Subtract 968 from 996 to get 28.
Fetch the next digit (1) from the dividend, attach it to 28 and continue: 281 / 121

Let's proceed to step 8:
281 divided by 121 is 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 619682.0
If we subtract 242 from 281, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 9:
121 can be fit into 390 3 times, resulting in a remainder of 27.
The next digit of our result is 3. 
Result so far: 619682.3
Subtracting 363 from 390 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 10:
121 goes into 270 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 619682.32
Subtract 242 from 270 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 11:
The number 121 fits into 280 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 619682.322
Deduct 242 from 280 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 619682.322 with a remainder of 0.0038.