We divide 64139386 by 901
We want to figure out the number of times 64139386 can be divided by 901.

Going ahead to step 1:
When dividing 6 by 901, we get 0 with 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.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 901

Let's proceed to step 2:
901 goes into 64 0 times with 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.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 901

On to step 3:
641 divided by 901 is 0 with a remainder of 641.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 641 to get 641.
Take the next digit (3) from the dividend and append it to 641, then repeat: 6413 / 901

Let's proceed to step 4:
If we divide 6413 by 901, we get 7 and a remainder of 106.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 6307 from 6413 leaves us with 106.
Include the next digit (9) from the dividend after 106, then repeat: 1069 / 901

Going ahead to step 5:
901 can be fit into 1069 1 times, resulting in a remainder of 168.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
If we subtract 901 from 1069, we get 168.
Take the next digit (3) from the dividend and append it to 168, then repeat: 1683 / 901

Step 6:
1683 divided by 901 is 1 with a remainder of 782.
Use 1 as the next digit of our solution. 
Result so far: 711.0
Deduct 901 from 1683 and we're left with 782.
Fetch the next digit (8) from the dividend, attach it to 782 and continue: 7828 / 901

On to step 7:
901 can be fit into 7828 8 times, resulting in a remainder of 620.
The number 8 becomes the next digit in our result. 
Result so far: 7118.0
The remainder is 620 after subtracting 7208 from 7828.
Fetch the next digit (6) from the dividend, attach it to 620 and continue: 6206 / 901

Advancing to step 8:
901 can be fit into 6206 6 times, resulting in a remainder of 800.
The next digit of our result is 6. 
Result so far: 71186.0
The remainder is 800 after subtracting 5406 from 6206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Step 9:
When dividing 8000 by 901, we get 8 with a remainder of 792.
Write down 8 as next digit of the result. 
Result so far: 71186.8
Subtracting 7208 from 8000 leaves us with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Let's proceed to step 10:
The number 901 fits into 7920 8 times, leaving a remainder of 712.
Record the quotient 8 as the next digit in the result. 
Result so far: 71186.88
If we subtract 7208 from 7920, we get 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Our division results in 71186.88 with a remaining 0.712.