We divide 645415 by 49
We want to figure out the number of times 645415 can be divided by 49.

Step 1:
If we divide 6 by 49, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 49

Advancing to step 2:
49 can be fit into 64 1 times, resulting in a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 49 away from 64, we end up with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 49

Step 3:
The number 49 fits into 155 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 147 from 155 and we're left with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 49

Let's proceed to step 4:
49 goes into 84 1 times with a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 131.0
Subtracting 49 from 84 leaves us with 35.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 49

On to step 5:
49 goes into 351 7 times with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 1317.0
Subtract 343 from 351 to get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 49

Step 6:
49 can be fit into 85 1 times, resulting in a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 13171.0
If we subtract 49 from 85, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 7:
The number 49 fits into 360 7 times, leaving a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 13171.7
Subtract 343 from 360 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
If we divide 170 by 49, we get 3 and a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 13171.73
Deduct 147 from 170 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 9:
230 divided by 49 is 4 with a remainder of 34.
The next digit of our result is 4. 
Result so far: 13171.734
The remainder is 34 after subtracting 196 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 10:
49 can be fit into 340 6 times, resulting in a remainder of 46.
The next digit of our result is 6. 
Result so far: 13171.7346
Deduct 294 from 340 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 11:
When dividing 460 by 49, we get 9 with a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 13171.73469
Deduct 441 from 460 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 12:
When dividing 190 by 49, we get 3 with a remainder of 43.
Use 3 as the next digit of our solution. 
Result so far: 13171.734693
Subtracting 147 from 190 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 13:
49 goes into 430 8 times with a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 13171.7346938
Subtract 392 from 430 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 14:
49 can be fit into 380 7 times, resulting in a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 13171.73469387
Deduct 343 from 380 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

In conclusion, the division gives 13171.73469387 with a balance of 3.7e-08.