We're dividing 20391609 by 524 
We want to figure out the number of times 20391609 can be divided by 524.

On to step 1:
524 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 524

Let's proceed to step 2:
If we divide 20 by 524, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 524

Moving on to step 3:
If we divide 203 by 524, we get 0 and a remainder of 203.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 203, we get 203.
Bring next digit (9) of the dividend behind the 203 and repeat the process: 2039 / 524

Moving on to step 4:
524 goes into 2039 3 times with a remainder of 467.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 1572 from 2039 leaves us with 467.
Grab the next digit (1) from the dividend, add it to 467, then carry on: 4671 / 524

Moving on to step 5:
The number 524 fits into 4671 8 times, leaving a remainder of 479.
Put 8 as the next digit of the answer. 
Result so far: 38.0
If we subtract 4192 from 4671, we get 479.
Bring next digit (6) of the dividend behind the 479 and repeat the process: 4796 / 524

Step 6:
524 goes into 4796 9 times with a remainder of 80.
Record the quotient 9 as the next digit in the result. 
Result so far: 389.0
The remainder is 80 after subtracting 4716 from 4796.
Take the next digit (0) from the dividend and append it to 80, then repeat: 800 / 524

On to step 7:
524 can be fit into 800 1 times, resulting in a remainder of 276.
Write down 1 as next digit of the result. 
Result so far: 3891.0
The remainder is 276 after subtracting 524 from 800.
Fetch the next digit (9) from the dividend, attach it to 276 and continue: 2769 / 524

Step 8:
If we divide 2769 by 524, we get 5 and a remainder of 149.
Put 5 as the next digit of the answer. 
Result so far: 38915.0
Deduct 2620 from 2769 and we're left with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Advancing to step 9:
524 can be fit into 1490 2 times, resulting in a remainder of 442.
Record the quotient 2 as the next digit in the result. 
Result so far: 38915.2
If we subtract 1048 from 1490, we get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Let's proceed to step 10:
4420 divided by 524 is 8 with a remainder of 228.
Write down 8 as next digit of the result. 
Result so far: 38915.28
Subtract 4192 from 4420 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 11:
2280 divided by 524 is 4 with a remainder of 184.
Put 4 as the next digit of the answer. 
Result so far: 38915.284
Subtracting 2096 from 2280 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 12:
If we divide 1840 by 524, we get 3 and a remainder of 268.
The number 3 becomes the next digit in our result. 
Result so far: 38915.2843
If we take 1572 away from 1840, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

On to step 13:
The number 524 fits into 2680 5 times, leaving a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 38915.28435
If we take 2620 away from 2680, we end up 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.

On to step 14:
600 divided by 524 is 1 with a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 38915.284351
Deduct 524 from 600 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 15:
760 divided by 524 is 1 with a remainder of 236.
Write down 1 as next digit of the result. 
Result so far: 38915.2843511
If we take 524 away from 760, we end up with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Our division results in 38915.2843511 with a remaining 2.36e-06.