We're dividing 65100094 by 521 
We want to figure out the number of times 65100094 can be divided by 521.

Going ahead to step 1:
6 divided by 521 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 521

Moving on to step 2:
When dividing 65 by 521, we get 0 with a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 65, we end up with 65.
Take the next digit (1) from the dividend and append it to 65, then repeat: 651 / 521

Going ahead to step 3:
521 can be fit into 651 1 times, resulting in a remainder of 130.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 521 from 651 leaves us with 130.
Take the next digit (0) from the dividend and append it to 130, then repeat: 1300 / 521

Advancing to step 4:
521 goes into 1300 2 times with a remainder of 258.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1042 from 1300 leaves us with 258.
Append the next digit (0) from the dividend to 258 and continue with: 2580 / 521

Moving on to step 5:
The number 521 fits into 2580 4 times, leaving a remainder of 496.
The next digit of our result is 4. 
Result so far: 124.0
If we subtract 2084 from 2580, we get 496.
Grab the next digit (0) from the dividend, add it to 496, then carry on: 4960 / 521

Advancing to step 6:
521 can be fit into 4960 9 times, resulting in a remainder of 271.
The number 9 becomes the next digit in our result. 
Result so far: 1249.0
If we take 4689 away from 4960, we end up with 271.
Include the next digit (9) from the dividend after 271, then repeat: 2719 / 521

Advancing to step 7:
521 goes into 2719 5 times with a remainder of 114.
The number 5 becomes the next digit in our result. 
Result so far: 12495.0
If we take 2605 away from 2719, we end up with 114.
Fetch the next digit (4) from the dividend, attach it to 114 and continue: 1144 / 521

Going ahead to step 8:
The number 521 fits into 1144 2 times, leaving a remainder of 102.
The number 2 becomes the next digit in our result. 
Result so far: 124952.0
If we subtract 1042 from 1144, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 9:
1020 divided by 521 is 1 with a remainder of 499.
The next digit of our result is 1. 
Result so far: 124952.1
If we subtract 521 from 1020, we get 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

On to step 10:
When dividing 4990 by 521, we get 9 with a remainder of 301.
The number 9 becomes the next digit in our result. 
Result so far: 124952.19
Deduct 4689 from 4990 and we're left with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Moving on to step 11:
If we divide 3010 by 521, we get 5 and a remainder of 405.
Use 5 as the next digit of our solution. 
Result so far: 124952.195
Subtracting 2605 from 3010 leaves us with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Moving on to step 12:
When dividing 4050 by 521, we get 7 with a remainder of 403.
Use 7 as the next digit of our solution. 
Result so far: 124952.1957
If we take 3647 away from 4050, we end up with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Advancing to step 13:
521 can be fit into 4030 7 times, resulting in a remainder of 383.
Record the quotient 7 as the next digit in the result. 
Result so far: 124952.19577
If we take 3647 away from 4030, we end up with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Our division results in 124952.19577 with a remaining 0.000383.