61318902 divided by 640 
We want to figure out the number of times 61318902 can be divided by 640.

On to step 1:
6 divided by 640 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 640

Step 2:
640 goes into 61 0 times with a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 61 leaves us with 61.
Fetch the next digit (3) from the dividend, attach it to 61 and continue: 613 / 640

Let's proceed to step 3:
613 divided by 640 is 0 with a remainder of 613.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 613 to get 613.
Append the next digit (1) from the dividend to 613 and continue with: 6131 / 640

Going ahead to step 4:
If we divide 6131 by 640, we get 9 and a remainder of 371.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 5760 from 6131 to get 371.
Append the next digit (8) from the dividend to 371 and continue with: 3718 / 640

Let's proceed to step 5:
640 goes into 3718 5 times with a remainder of 518.
Put 5 as the next digit of the answer. 
Result so far: 95.0
If we subtract 3200 from 3718, we get 518.
Grab the next digit (9) from the dividend, add it to 518, then carry on: 5189 / 640

Moving on to step 6:
When dividing 5189 by 640, we get 8 with a remainder of 69.
Record the quotient 8 as the next digit in the result. 
Result so far: 958.0
If we subtract 5120 from 5189, we get 69.
Take the next digit (0) from the dividend and append it to 69, then repeat: 690 / 640

Step 7:
The number 640 fits into 690 1 times, leaving a remainder of 50.
Use 1 as the next digit of our solution. 
Result so far: 9581.0
The remainder is 50 after subtracting 640 from 690.
Append the next digit (2) from the dividend to 50 and continue with: 502 / 640

Advancing to step 8:
If we divide 502 by 640, we get 0 and a remainder of 502.
Write down 0 as next digit of the result. 
Result so far: 95810.0
Subtracting 0 from 502 leaves us with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Let's proceed to step 9:
The number 640 fits into 5020 7 times, leaving a remainder of 540.
The number 7 becomes the next digit in our result. 
Result so far: 95810.7
Deduct 4480 from 5020 and we're left with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 10:
The number 640 fits into 5400 8 times, leaving a remainder of 280.
The next digit of our result is 8. 
Result so far: 95810.78
If we subtract 5120 from 5400, we 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 11:
If we divide 2800 by 640, we get 4 and a remainder of 240.
Write down 4 as next digit of the result. 
Result so far: 95810.784
Deduct 2560 from 2800 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 12:
640 goes into 2400 3 times with a remainder of 480.
The number 3 becomes the next digit in our result. 
Result so far: 95810.7843
If we subtract 1920 from 2400, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 13:
640 can be fit into 4800 7 times, resulting in a remainder of 320.
Use 7 as the next digit of our solution. 
Result so far: 95810.78437
If we take 4480 away from 4800, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 14:
When dividing 3200 by 640, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 95810.784375
If we subtract 3200 from 3200, we 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.

Moving on to step 15:
When dividing 0 by 640, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 95810.784375
If we take 0 away from 0, we end up 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.

Going ahead to step 16:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 95810.784375
If we take 0 away from 0, we end up 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 95810.784375, with a leftover of 0.0.