20539194 ÷ 102 
We're looking to find how many times 102 goes into 20539194.

On to step 1:
102 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 102

Going ahead to step 2:
If we divide 20 by 102, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 102

Advancing to step 3:
205 divided by 102 is 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 204 from 205 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 102

Moving on to step 4:
13 divided by 102 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 13 leaves us with 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 102

Moving on to step 5:
If we divide 139 by 102, we get 1 and a remainder of 37.
The next digit of our result is 1. 
Result so far: 201.0
If we subtract 102 from 139, we get 37.
Include the next digit (1) from the dividend after 37, then repeat: 371 / 102

On to step 6:
371 divided by 102 is 3 with a remainder of 65.
Put 3 as the next digit of the answer. 
Result so far: 2013.0
Deduct 306 from 371 and we're left with 65.
Include the next digit (9) from the dividend after 65, then repeat: 659 / 102

On to step 7:
If we divide 659 by 102, we get 6 and a remainder of 47.
The next digit of our result is 6. 
Result so far: 20136.0
Deduct 612 from 659 and we're left with 47.
Append the next digit (4) from the dividend to 47 and continue with: 474 / 102

On to step 8:
When dividing 474 by 102, we get 4 with a remainder of 66.
The next digit of our result is 4. 
Result so far: 201364.0
Subtract 408 from 474 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 9:
The number 102 fits into 660 6 times, leaving a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 201364.6
Subtract 612 from 660 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
102 goes into 480 4 times with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 201364.64
If we subtract 408 from 480, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
102 goes into 720 7 times with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 201364.647
Deduct 714 from 720 and we're left 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.

Let's proceed to step 12:
If we divide 60 by 102, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 201364.647
Subtracting 0 from 60 leaves us 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.

Moving on to step 13:
102 goes into 600 5 times with a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 201364.64705
Subtract 510 from 600 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 14:
900 divided by 102 is 8 with a remainder of 84.
Write down 8 as next digit of the result. 
Result so far: 201364.647058
If we take 816 away from 900, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 15:
102 goes into 840 8 times with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 201364.6470588
Subtract 816 from 840 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 201364.6470588, with a leftover of 2.4e-07.