66243524 ÷ 121 
We want to figure out the number of times 66243524 can be divided by 121.

Step 1:
If we divide 6 by 121, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 121

Let's proceed to step 2:
When dividing 66 by 121, we get 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Bring next digit (2) of the dividend behind the 66 and repeat the process: 662 / 121

Moving on to step 3:
The number 121 fits into 662 5 times, leaving a remainder of 57.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 605 from 662 to get 57.
Bring next digit (4) of the dividend behind the 57 and repeat the process: 574 / 121

Advancing to step 4:
If we divide 574 by 121, we get 4 and a remainder of 90.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 484 away from 574, we end up with 90.
Fetch the next digit (3) from the dividend, attach it to 90 and continue: 903 / 121

On to step 5:
When dividing 903 by 121, we get 7 with a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 547.0
Subtracting 847 from 903 leaves us with 56.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 121

Step 6:
121 goes into 565 4 times with a remainder of 81.
Write down 4 as next digit of the result. 
Result so far: 5474.0
Subtract 484 from 565 to get 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 121

Let's proceed to step 7:
The number 121 fits into 812 6 times, leaving a remainder of 86.
The next digit of our result is 6. 
Result so far: 54746.0
If we take 726 away from 812, we end up with 86.
Grab the next digit (4) from the dividend, add it to 86, then carry on: 864 / 121

Going ahead to step 8:
If we divide 864 by 121, we get 7 and a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 547467.0
The remainder is 17 after subtracting 847 from 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
121 goes into 170 1 times with a remainder of 49.
The next digit of our result is 1. 
Result so far: 547467.1
If we take 121 away from 170, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
490 divided by 121 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 547467.14
Subtracting 484 from 490 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
60 divided by 121 is 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 547467.14
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
If we divide 600 by 121, we get 4 and a remainder of 116.
Write down 4 as next digit of the result. 
Result so far: 547467.1404
The remainder is 116 after subtracting 484 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 13:
If we divide 1160 by 121, we get 9 and a remainder of 71.
The next digit of our result is 9. 
Result so far: 547467.14049
The remainder is 71 after subtracting 1089 from 1160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 14:
710 divided by 121 is 5 with a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 547467.140495
If we take 605 away from 710, we end up with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 15:
1050 divided by 121 is 8 with a remainder of 82.
Write down 8 as next digit of the result. 
Result so far: 547467.1404958
Deduct 968 from 1050 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 16:
121 can be fit into 820 6 times, resulting in a remainder of 94.
The number 6 becomes the next digit in our result. 
Result so far: 547467.14049586
If we take 726 away from 820, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

The final outcome is 547467.14049586, with a leftover of 9.4e-08.