64172148 ÷ 525 
Our goal is to divide 64172148 by 525.

Let's proceed to step 1:
When dividing 6 by 525, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 525

Moving on to step 2:
If we divide 64 by 525, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Take the next digit (1) from the dividend and append it to 64, then repeat: 641 / 525

Let's proceed to step 3:
The number 525 fits into 641 1 times, leaving a remainder of 116.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 525 from 641 leaves us with 116.
Grab the next digit (7) from the dividend, add it to 116, then carry on: 1167 / 525

Step 4:
525 can be fit into 1167 2 times, resulting in a remainder of 117.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 1050 from 1167 and we're left with 117.
Append the next digit (2) from the dividend to 117 and continue with: 1172 / 525

On to step 5:
If we divide 1172 by 525, we get 2 and a remainder of 122.
Put 2 as the next digit of the answer. 
Result so far: 122.0
If we subtract 1050 from 1172, we get 122.
Fetch the next digit (1) from the dividend, attach it to 122 and continue: 1221 / 525

Step 6:
525 goes into 1221 2 times with a remainder of 171.
Write down 2 as next digit of the result. 
Result so far: 1222.0
Subtract 1050 from 1221 to get 171.
Bring next digit (4) of the dividend behind the 171 and repeat the process: 1714 / 525

On to step 7:
525 can be fit into 1714 3 times, resulting in a remainder of 139.
The next digit of our result is 3. 
Result so far: 12223.0
Subtract 1575 from 1714 to get 139.
Include the next digit (8) from the dividend after 139, then repeat: 1398 / 525

Going ahead to step 8:
The number 525 fits into 1398 2 times, leaving a remainder of 348.
Use 2 as the next digit of our solution. 
Result so far: 122232.0
Subtracting 1050 from 1398 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Let's proceed to step 9:
3480 divided by 525 is 6 with a remainder of 330.
The next digit of our result is 6. 
Result so far: 122232.6
Deduct 3150 from 3480 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 10:
When dividing 3300 by 525, we get 6 with a remainder of 150.
Record the quotient 6 as the next digit in the result. 
Result so far: 122232.66
Subtract 3150 from 3300 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 122232.66, with a leftover of 0.15.