28015970 ÷ 121 
We want to figure out the number of times 28015970 can be divided by 121.

Moving on to step 1:
The number 121 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 121

Advancing to step 2:
121 can be fit into 28 0 times, resulting in a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Include the next digit (0) from the dividend after 28, then repeat: 280 / 121

Step 3:
121 goes into 280 2 times with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 242 from 280 and we're left with 38.
Append the next digit (1) from the dividend to 38 and continue with: 381 / 121

On to step 4:
121 goes into 381 3 times with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
The remainder is 18 after subtracting 363 from 381.
Append the next digit (5) from the dividend to 18 and continue with: 185 / 121

Going ahead to step 5:
121 goes into 185 1 times with a remainder of 64.
Put 1 as the next digit of the answer. 
Result so far: 231.0
Deduct 121 from 185 and we're left with 64.
Fetch the next digit (9) from the dividend, attach it to 64 and continue: 649 / 121

Going ahead to step 6:
If we divide 649 by 121, we get 5 and a remainder of 44.
The next digit of our result is 5. 
Result so far: 2315.0
Subtracting 605 from 649 leaves us with 44.
Grab the next digit (7) from the dividend, add it to 44, then carry on: 447 / 121

Advancing to step 7:
The number 121 fits into 447 3 times, leaving a remainder of 84.
Record the quotient 3 as the next digit in the result. 
Result so far: 23153.0
Subtract 363 from 447 to get 84.
Include the next digit (0) from the dividend after 84, then repeat: 840 / 121

Step 8:
121 can be fit into 840 6 times, resulting in a remainder of 114.
Use 6 as the next digit of our solution. 
Result so far: 231536.0
If we take 726 away from 840, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Step 9:
The number 121 fits into 1140 9 times, leaving a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 231536.9
If we subtract 1089 from 1140, we 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.

Let's proceed to step 10:
121 can be fit into 510 4 times, resulting in a remainder of 26.
The next digit of our result is 4. 
Result so far: 231536.94
Subtracting 484 from 510 leaves us with 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 11:
260 divided by 121 is 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 231536.942
The remainder is 18 after subtracting 242 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 12:
180 divided by 121 is 1 with a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 231536.9421
If we take 121 away from 180, we end up 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.

Step 13:
The number 121 fits into 590 4 times, leaving a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 231536.94214
The remainder is 106 after subtracting 484 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 14:
1060 divided by 121 is 8 with a remainder of 92.
Use 8 as the next digit of our solution. 
Result so far: 231536.942148
The remainder is 92 after subtracting 968 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 15:
920 divided by 121 is 7 with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 231536.9421487
Subtract 847 from 920 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Going ahead to step 16:
121 goes into 730 6 times with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 231536.94214876
Subtracting 726 from 730 leaves us 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.

In conclusion, the division gives 231536.94214876 with a balance of 4e-09.