Let's divide 745641 by 39
We're looking to find how many times 39 goes into 745641.

On to step 1:
39 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 39

Advancing to step 2:
74 divided by 39 is 1 with a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 39 from 74 and we're left with 35.
Include the next digit (5) from the dividend after 35, then repeat: 355 / 39

Step 3:
39 goes into 355 9 times with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we take 351 away from 355, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 39

On to step 4:
The number 39 fits into 46 1 times, leaving a remainder of 7.
The next digit of our result is 1. 
Result so far: 191.0
Deduct 39 from 46 and we're left with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 39

Advancing to step 5:
39 can be fit into 74 1 times, resulting in a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 1911.0
Subtract 39 from 74 to get 35.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 39

Step 6:
If we divide 351 by 39, we get 9 and a remainder of 0.
The next digit of our result is 9. 
Result so far: 19119.0
Subtract 351 from 351 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.

Going ahead to step 7:
If we divide 0 by 39, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 19119.0
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.

Let's proceed to step 8:
If we divide 0 by 39, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 19119.0
Deduct 0 from 0 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.

The final outcome is 19119.0, with a leftover of 0.0.