We're dividing 72535558 by 121 
Let's see how many times 121 fits into 72535558.

Step 1:
When dividing 7 by 121, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 121

Going ahead to step 2:
121 can be fit into 72 0 times, resulting in a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Grab the next digit (5) from the dividend, add it to 72, then carry on: 725 / 121

Let's proceed to step 3:
121 goes into 725 5 times with a remainder of 120.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 605 from 725 leaves us with 120.
Take the next digit (3) from the dividend and append it to 120, then repeat: 1203 / 121

On to step 4:
When dividing 1203 by 121, we get 9 with a remainder of 114.
The next digit of our result is 9. 
Result so far: 59.0
If we take 1089 away from 1203, we end up with 114.
Grab the next digit (5) from the dividend, add it to 114, then carry on: 1145 / 121

Let's proceed to step 5:
121 goes into 1145 9 times with a remainder of 56.
Write down 9 as next digit of the result. 
Result so far: 599.0
If we subtract 1089 from 1145, we get 56.
Grab the next digit (5) from the dividend, add it to 56, then carry on: 565 / 121

Step 6:
121 goes into 565 4 times with a remainder of 81.
Record the quotient 4 as the next digit in the result. 
Result so far: 5994.0
Deduct 484 from 565 and we're left with 81.
Append the next digit (5) from the dividend to 81 and continue with: 815 / 121

Step 7:
121 can be fit into 815 6 times, resulting in a remainder of 89.
Use 6 as the next digit of our solution. 
Result so far: 59946.0
If we take 726 away from 815, we end up with 89.
Include the next digit (8) from the dividend after 89, then repeat: 898 / 121

Step 8:
If we divide 898 by 121, we get 7 and a remainder of 51.
Use 7 as the next digit of our solution. 
Result so far: 599467.0
Subtract 847 from 898 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
When dividing 510 by 121, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 599467.4
The remainder is 26 after subtracting 484 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
The number 121 fits into 260 2 times, leaving a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 599467.42
Deduct 242 from 260 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 11:
When dividing 180 by 121, we get 1 with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 599467.421
Deduct 121 from 180 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 12:
590 divided by 121 is 4 with a remainder of 106.
Write down 4 as next digit of the result. 
Result so far: 599467.4214
Subtracting 484 from 590 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 13:
The number 121 fits into 1060 8 times, leaving a remainder of 92.
Record the quotient 8 as the next digit in the result. 
Result so far: 599467.42148
If we take 968 away from 1060, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 14:
The number 121 fits into 920 7 times, leaving a remainder of 73.
Use 7 as the next digit of our solution. 
Result so far: 599467.421487
If we take 847 away from 920, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 15:
If we divide 730 by 121, we get 6 and a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 599467.4214876
Deduct 726 from 730 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 16:
121 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 599467.4214876
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 599467.4214876, with a leftover of 4e-08.