We're dividing 65149974 by 643 
We're looking to find how many times 643 goes into 65149974.

Moving on to step 1:
643 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 643

Let's proceed to step 2:
65 divided by 643 is 0 with a remainder of 65.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 65 after subtracting 0 from 65.
Fetch the next digit (1) from the dividend, attach it to 65 and continue: 651 / 643

Step 3:
651 divided by 643 is 1 with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 8 after subtracting 643 from 651.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 643

Step 4:
The number 643 fits into 84 0 times, leaving a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 84 leaves us with 84.
Bring next digit (9) of the dividend behind the 84 and repeat the process: 849 / 643

Moving on to step 5:
849 divided by 643 is 1 with a remainder of 206.
The next digit of our result is 1. 
Result so far: 101.0
If we take 643 away from 849, we end up with 206.
Include the next digit (9) from the dividend after 206, then repeat: 2069 / 643

Going ahead to step 6:
643 goes into 2069 3 times with a remainder of 140.
Record the quotient 3 as the next digit in the result. 
Result so far: 1013.0
Subtracting 1929 from 2069 leaves us with 140.
Bring next digit (7) of the dividend behind the 140 and repeat the process: 1407 / 643

Advancing to step 7:
643 goes into 1407 2 times with a remainder of 121.
Put 2 as the next digit of the answer. 
Result so far: 10132.0
The remainder is 121 after subtracting 1286 from 1407.
Bring next digit (4) of the dividend behind the 121 and repeat the process: 1214 / 643

On to step 8:
1214 divided by 643 is 1 with a remainder of 571.
The next digit of our result is 1. 
Result so far: 101321.0
Deduct 643 from 1214 and we're left with 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Going ahead to step 9:
When dividing 5710 by 643, we get 8 with a remainder of 566.
Use 8 as the next digit of our solution. 
Result so far: 101321.8
If we subtract 5144 from 5710, we get 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

On to step 10:
The number 643 fits into 5660 8 times, leaving a remainder of 516.
Use 8 as the next digit of our solution. 
Result so far: 101321.88
If we take 5144 away from 5660, we end up with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Our division results in 101321.88 with a remaining 0.516.