63925289 divided by 520 
We want to figure out the number of times 63925289 can be divided by 520.

Step 1:
When dividing 6 by 520, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 520

Going ahead to step 2:
63 divided by 520 is 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 520

On to step 3:
520 can be fit into 639 1 times, resulting in a remainder of 119.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 520 from 639 to get 119.
Fetch the next digit (2) from the dividend, attach it to 119 and continue: 1192 / 520

Step 4:
520 can be fit into 1192 2 times, resulting in a remainder of 152.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1040 from 1192 leaves us with 152.
Bring next digit (5) of the dividend behind the 152 and repeat the process: 1525 / 520

Moving on to step 5:
520 goes into 1525 2 times with a remainder of 485.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
The remainder is 485 after subtracting 1040 from 1525.
Append the next digit (2) from the dividend to 485 and continue with: 4852 / 520

Advancing to step 6:
4852 divided by 520 is 9 with a remainder of 172.
Use 9 as the next digit of our solution. 
Result so far: 1229.0
Subtract 4680 from 4852 to get 172.
Fetch the next digit (8) from the dividend, attach it to 172 and continue: 1728 / 520

Moving on to step 7:
If we divide 1728 by 520, we get 3 and a remainder of 168.
Record the quotient 3 as the next digit in the result. 
Result so far: 12293.0
If we take 1560 away from 1728, we end up with 168.
Grab the next digit (9) from the dividend, add it to 168, then carry on: 1689 / 520

Step 8:
1689 divided by 520 is 3 with a remainder of 129.
Put 3 as the next digit of the answer. 
Result so far: 122933.0
The remainder is 129 after subtracting 1560 from 1689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

On to step 9:
When dividing 1290 by 520, we get 2 with a remainder of 250.
The number 2 becomes the next digit in our result. 
Result so far: 122933.2
Subtracting 1040 from 1290 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 10:
2500 divided by 520 is 4 with a remainder of 420.
Put 4 as the next digit of the answer. 
Result so far: 122933.24
If we take 2080 away from 2500, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 11:
520 can be fit into 4200 8 times, resulting in a remainder of 40.
The next digit of our result is 8. 
Result so far: 122933.248
Deduct 4160 from 4200 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
520 can be fit into 400 0 times, resulting in a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 122933.248
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 13:
520 goes into 4000 7 times with a remainder of 360.
Put 7 as the next digit of the answer. 
Result so far: 122933.24807
If we take 3640 away from 4000, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 14:
If we divide 3600 by 520, we get 6 and a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 122933.248076
If we take 3120 away from 3600, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 15:
When dividing 4800 by 520, we get 9 with a remainder of 120.
Put 9 as the next digit of the answer. 
Result so far: 122933.2480769
If we take 4680 away from 4800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 16:
1200 divided by 520 is 2 with a remainder of 160.
The next digit of our result is 2. 
Result so far: 122933.24807692
If we subtract 1040 from 1200, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

In conclusion, the division gives 122933.24807692 with a balance of 1.6e-07.