We're dividing 53399445 by 107 
We're looking to find how many times 107 goes into 53399445.

Going ahead to step 1:
If we divide 5 by 107, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 107

Going ahead to step 2:
107 goes into 53 0 times with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Fetch the next digit (3) from the dividend, attach it to 53 and continue: 533 / 107

On to step 3:
533 divided by 107 is 4 with a remainder of 105.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 428 from 533, we get 105.
Include the next digit (9) from the dividend after 105, then repeat: 1059 / 107

Let's proceed to step 4:
If we divide 1059 by 107, we get 9 and a remainder of 96.
The next digit of our result is 9. 
Result so far: 49.0
Subtract 963 from 1059 to get 96.
Bring next digit (9) of the dividend behind the 96 and repeat the process: 969 / 107

Step 5:
107 can be fit into 969 9 times, resulting in a remainder of 6.
The next digit of our result is 9. 
Result so far: 499.0
Deduct 963 from 969 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 107

Advancing to step 6:
107 goes into 64 0 times with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 4990.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (4) from the dividend to 64 and continue with: 644 / 107

Step 7:
If we divide 644 by 107, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 49906.0
The remainder is 2 after subtracting 642 from 644.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 107

On to step 8:
When dividing 25 by 107, we get 0 with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 499060.0
Subtract 0 from 25 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
When dividing 250 by 107, we get 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 499060.2
The remainder is 36 after subtracting 214 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 10:
If we divide 360 by 107, we get 3 and a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 499060.23
The remainder is 39 after subtracting 321 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 11:
When dividing 390 by 107, we get 3 with a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 499060.233
If we take 321 away from 390, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The final outcome is 499060.233, with a leftover of 0.0069.