64123897 divided by 125 
We want to figure out the number of times 64123897 can be divided by 125.

Step 1:
The number 125 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 125

Advancing to step 2:
125 goes into 64 0 times with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 125

Moving on to step 3:
When dividing 641 by 125, we get 5 with a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 625 from 641 and we're left with 16.
Grab the next digit (2) from the dividend, add it to 16, then carry on: 162 / 125

Moving on to step 4:
When dividing 162 by 125, we get 1 with a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 51.0
The remainder is 37 after subtracting 125 from 162.
Include the next digit (3) from the dividend after 37, then repeat: 373 / 125

Moving on to step 5:
The number 125 fits into 373 2 times, leaving a remainder of 123.
The number 2 becomes the next digit in our result. 
Result so far: 512.0
The remainder is 123 after subtracting 250 from 373.
Include the next digit (8) from the dividend after 123, then repeat: 1238 / 125

Let's proceed to step 6:
1238 divided by 125 is 9 with a remainder of 113.
Write down 9 as next digit of the result. 
Result so far: 5129.0
If we take 1125 away from 1238, we end up with 113.
Include the next digit (9) from the dividend after 113, then repeat: 1139 / 125

Going ahead to step 7:
125 goes into 1139 9 times with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 51299.0
If we take 1125 away from 1139, we end up with 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 125

Going ahead to step 8:
125 can be fit into 147 1 times, resulting in a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 512991.0
Deduct 125 from 147 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
The number 125 fits into 220 1 times, leaving a remainder of 95.
The number 1 becomes the next digit in our result. 
Result so far: 512991.1
The remainder is 95 after subtracting 125 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 10:
If we divide 950 by 125, we get 7 and a remainder of 75.
Put 7 as the next digit of the answer. 
Result so far: 512991.17
If we take 875 away from 950, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 11:
125 can be fit into 750 6 times, resulting in a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 512991.176
Deduct 750 from 750 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
0 divided by 125 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 512991.176
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 13:
The number 125 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 512991.176
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 512991.176, with a leftover of 0.0.