82400640 divided by 121 
Let's see how many times 121 fits into 82400640.

Going ahead to step 1:
The number 121 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 121

Moving on to step 2:
121 can be fit into 82 0 times, resulting in a remainder of 82.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 82, we get 82.
Fetch the next digit (4) from the dividend, attach it to 82 and continue: 824 / 121

Let's proceed to step 3:
121 goes into 824 6 times with a remainder of 98.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 726 from 824, we get 98.
Include the next digit (0) from the dividend after 98, then repeat: 980 / 121

Going ahead to step 4:
121 goes into 980 8 times with a remainder of 12.
The next digit of our result is 8. 
Result so far: 68.0
If we take 968 away from 980, we end up with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 121

Moving on to step 5:
121 goes into 120 0 times with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 680.0
If we subtract 0 from 120, we get 120.
Grab the next digit (6) from the dividend, add it to 120, then carry on: 1206 / 121

Step 6:
The number 121 fits into 1206 9 times, leaving a remainder of 117.
Put 9 as the next digit of the answer. 
Result so far: 6809.0
The remainder is 117 after subtracting 1089 from 1206.
Fetch the next digit (4) from the dividend, attach it to 117 and continue: 1174 / 121

Moving on to step 7:
If we divide 1174 by 121, we get 9 and a remainder of 85.
Put 9 as the next digit of the answer. 
Result so far: 68099.0
If we take 1089 away from 1174, we end up with 85.
Include the next digit (0) from the dividend after 85, then repeat: 850 / 121

On to step 8:
121 goes into 850 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 680997.0
Subtracting 847 from 850 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
121 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 680997.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
121 goes into 300 2 times with a remainder of 58.
The next digit of our result is 2. 
Result so far: 680997.02
If we take 242 away from 300, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 11:
If we divide 580 by 121, we get 4 and a remainder of 96.
The number 4 becomes the next digit in our result. 
Result so far: 680997.024
The remainder is 96 after subtracting 484 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 12:
The number 121 fits into 960 7 times, leaving a remainder of 113.
Put 7 as the next digit of the answer. 
Result so far: 680997.0247
Subtract 847 from 960 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Going ahead to step 13:
121 can be fit into 1130 9 times, resulting in a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 680997.02479
If we subtract 1089 from 1130, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 14:
121 can be fit into 410 3 times, resulting in a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 680997.024793
Subtracting 363 from 410 leaves us 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 15:
121 can be fit into 470 3 times, resulting in a remainder of 107.
Record the quotient 3 as the next digit in the result. 
Result so far: 680997.0247933
If we subtract 363 from 470, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

The final outcome is 680997.0247933, with a leftover of 1.07e-06.