We look at the division of 42599545 by 790 
We want to figure out the number of times 42599545 can be divided by 790.

Moving on to step 1:
When dividing 4 by 790, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 790

On to step 2:
The number 790 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 790

Step 3:
790 can be fit into 425 0 times, resulting in a remainder of 425.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 425 and we're left with 425.
Grab the next digit (9) from the dividend, add it to 425, then carry on: 4259 / 790

Let's proceed to step 4:
790 goes into 4259 5 times with a remainder of 309.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 3950 from 4259 and we're left with 309.
Fetch the next digit (9) from the dividend, attach it to 309 and continue: 3099 / 790

On to step 5:
790 goes into 3099 3 times with a remainder of 729.
Put 3 as the next digit of the answer. 
Result so far: 53.0
If we subtract 2370 from 3099, we get 729.
Append the next digit (5) from the dividend to 729 and continue with: 7295 / 790

Moving on to step 6:
When dividing 7295 by 790, we get 9 with a remainder of 185.
The next digit of our result is 9. 
Result so far: 539.0
Deduct 7110 from 7295 and we're left with 185.
Append the next digit (4) from the dividend to 185 and continue with: 1854 / 790

Moving on to step 7:
When dividing 1854 by 790, we get 2 with a remainder of 274.
The next digit of our result is 2. 
Result so far: 5392.0
The remainder is 274 after subtracting 1580 from 1854.
Grab the next digit (5) from the dividend, add it to 274, then carry on: 2745 / 790

Going ahead to step 8:
2745 divided by 790 is 3 with a remainder of 375.
Use 3 as the next digit of our solution. 
Result so far: 53923.0
Deduct 2370 from 2745 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 9:
3750 divided by 790 is 4 with a remainder of 590.
Use 4 as the next digit of our solution. 
Result so far: 53923.4
Subtracting 3160 from 3750 leaves us with 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Let's proceed to step 10:
The number 790 fits into 5900 7 times, leaving a remainder of 370.
Record the quotient 7 as the next digit in the result. 
Result so far: 53923.47
Deduct 5530 from 5900 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 11:
The number 790 fits into 3700 4 times, leaving a remainder of 540.
The next digit of our result is 4. 
Result so far: 53923.474
If we subtract 3160 from 3700, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 12:
790 can be fit into 5400 6 times, resulting in a remainder of 660.
Record the quotient 6 as the next digit in the result. 
Result so far: 53923.4746
The remainder is 660 after subtracting 4740 from 5400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

On to step 13:
The number 790 fits into 6600 8 times, leaving a remainder of 280.
The next digit of our result is 8. 
Result so far: 53923.47468
Subtract 6320 from 6600 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 14:
When dividing 2800 by 790, we get 3 with a remainder of 430.
The number 3 becomes the next digit in our result. 
Result so far: 53923.474683
Deduct 2370 from 2800 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 15:
When dividing 4300 by 790, we get 5 with a remainder of 350.
Use 5 as the next digit of our solution. 
Result so far: 53923.4746835
Subtracting 3950 from 4300 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 16:
When dividing 3500 by 790, we get 4 with a remainder of 340.
Use 4 as the next digit of our solution. 
Result so far: 53923.47468354
If we take 3160 away from 3500, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

The final outcome is 53923.47468354, with a leftover of 3.4e-07.